Mistwell
Crusty Old Meatwad (he/him)
I am the OP's friend with the theory!
Context:
I own every published physical 5th edition product so far and l have them all on Beyond. I have played in or run every AP so far and am currently DMing DotMM (Level 14), run a 9 table Adventurers League night, co-host a D&D (not actual play) podcast and spend countless €€€€ on out of print and third party products every month. I am as hardcore a fan as it gets really!
What streamers represent is a rarified version of a playstyle that Wizards are trying to cater for. Witness the Season 8 AL modules, particulary Once in Waterdeep and the first two Tier 1 trilogies. They explicity push a type of slapstick, extra playstyle. The OP, I guess, is saying that this drive to cater for heavy RP doesn't suit everyone and is part of a move to cater to a wider audience. And again, while that particular playstyle isn't for me, if it means continued health and expansion of the game I will suffer the move to cater for it.
Any time you tell someone that they are playing the wrong game, even with your preface of 'I don't want to be a jerk but' I think you need to have a bit of a look at yourself.
The most recent big publication is a mega dungeon.
They're not catering to one type. They just put out stuff for all types. It has nothing to do with critical role. Some people have always (since the 1970s) emphasized RP over combat, and some have always emphasized combat over RP, and some have emphasized exploration to differing degrees as well, and none of this sources back to streaming stuff. I can point you to similar materials which were published before there was any streaming.