If you expect to retain any credibility whatsoever, you cannot on the one hand say that the author was merely made "uncomfortable" about the adventure, and that this was not in fact an accusation of racism against WotC and conflate this with your response to the comment about Vikings and modern day Norwegians.
I was talking about historically referenced racial cliché - you are talking in some lurid detail about flat-out racism.
Either you think the author was complaining about racism or you don't - you cannot sit on both sides of the fence, and either way, your response is not in keeping with a consistent point of view with regards to what I stated.
It is the author who thinks that a defiant and successful race with a mercantile culture 'isn't good enough' and that the city in the adventure smacks of colonialism. What the city and situation does is reflect to a limited degree the colonial-era parallels Ed Greenwood put into his gameworld, but in no way are the Chultans described as second class citizens, servile, downtrodden, unequal or incapable as racists commonly claim in the real world about people of colour.
Ed's approach was somewhat unfortunate, to be sure - but don't think that the IP was secured without caveats on the degree to which they could change HIS creation - creative IPs are usually littered with that sort of stuff, and it would be truly unusual for WotC to have got their hands on FR with complete freedom to change it.
The imagery that originally inspired the racial cliches of Chult are originally the result flat out racism. That they continue is not racism, but just general ignorance/lazyniess in this regard. A lot of people legitimately don't realize the racist origins of the stuff or how it might influence them- even if they themselves aren't racist.
Yes, it's possible to point out that an idea, practice, tradition, or charicature is rooted in real world racism and has had negative repercussions and can be seen as offensive and that it can/should be changed without suggesting that everyone that has found some entertainment is themselves a racist. As you mentioned, they're thinking (and not thinking) of lots of other things, and racism likely never even entered their minds when they went about it. But it doesn't change the origins of the tropes and doesn't really do anything to address them.
And WotC makes changes to the realms with every edition. There
used to be the city of Mezro and mention (but not much else) of Lapaliiya that could serve pretty much serve the same function as Chult's nalague colonial cities. Both were destroyed when 4e made sweeping changes that saw them both destroyed both remained destroyed when 5e made sweeping changes that brought most part of the realms back.
I don't think these choices were made because the staff at WotC are racist. Nobody is trying to call the people at WotC racists.
It's recognized that they didn't invent Chult. They're being accused of dropping the ball, making a mistake, and /or being lazy when it came to their portrayal of black people in Chult by not updating it to be in line with D&D's now more nuanced and inclusive goals.
That's not riding the fence. I'm not trying to covertly call WotC or anyone who has no issues with Chult or can't see the issues people might have a racist just because they can't see the issue. There was a time back pre-2002 or so when I wouldn't have seen them.
And finally, tropes regarding Norsemen aren't tropes applied to white people as a whole- or even all of Europe. People recognize them as being distinct from tropes regarding Francs, Celts, Greeks etc and certainly not implicated in the state of white relations in the US. Tropes regarding Africans are very much be hard-pressed to tell which ones are based on Yoruba of west Africa, which ones are based on Zuluu of east Africa, or which ones are based on Khoisan of southern Africa and those stereotypes are often implicated in the state of black relations in the US. The two in this regard really are substantively different to the point where equivalency cannot be drawn in that regard.
On your last point - do you really wish to say that having made 5th Edition racially and sexually inclusive, with the human race represented by a black woman in the PHB, that it isn't acceptable that this wasn't done sooner, in previous editions? Are you going to greet a progressive and inclusive design philosophy by criticising it's timing?
Should it have happened earlier? Sure. Should you retrospectively complain about it now it is here? No...
The statement you're referring to is not an attack on D&D's attempts at being more inclusive. It's about how D&D has more or less ignored African as a source of culture, mythology, and game elements in a way it hasn't really done for the rest of the world and how that results in them continuously falling back on the same old tropes with problematic origins. I think I can and I
should ask about what's going on and and criticize them for not really looking more into it.
Having more black people in the PHB is totally cool. Doesn't immunize them from criticism on any grounds.
And again, WotC is not accused of being racist. It's recognized that they didn't invent Chult. They're being accused of dropping the ball, making a mistake, and /or being lazy when it came to their portrayal of black people in Chult by not updating it to be in line with D&D's now more nuanced and inclusive goals.