Both the OSR and 3e crowd pretty much universally hated The Forge (and still do so far as I can tell) and most either hated (without ever having played) or hadn't heard of BW as of very recently. The also hated 4e (surprise!)!
I don't mean to like, be mean, but I feel like you may overstating how broad and deep these sort of feeling were, re: "hated" and "hadn't heard of" and so on. Like, I think there were a few vocal people who did hate that stuff (but who would have heard of BW), but I don't think that was really as much of the "OSR and 3E" crowd as you're implying.
I mean, what you defined crowd as though? People who play those games? Or people who
exclusively play those games in a conscious and ideological way? The second being like a single digit percentage of the first.
I feel like you're maybe traumatized or something and see the feelings as running a lot hotter than they did.
Also, like, looking at real people, not internet people, who play/run RPGs who I've met in the real world or even on video conferences or the like, I'd say generally feelings are a lot less overwrought than messageboards, and like, one of the DMs who runs one of my D&D campaigns is keen on BW conceptually, for example, but he doesn't run D&D like that at all.
So if suddenly there is this significant acceptance of these concepts in the D&D community, it would be a massive reversal (to say the least!).
Well, it might factor in that from 2015-2020 the D&D community has enlarged many times over, and many of the people are joining from outside TT RPGs, or having been absent from online discussion of them for a long time. We're talking about more people playing D&D alone now than were playing RPGs at all in height of the d20 era, maybe several times more.
That's obviously not the case at this fairly grog-tastic site (god bless us our hearts), but it's certainly pretty obvious on, say, reddit.