Everybody was cool with Larian making Baldur's Gate 3, but now that the gameplay is revealed, some BG fans have... mixed feelings, to put it mildly. Here in the forums and even on Youtube, I see people complaining about how Baldur's Gate 3 deviated from how the first two Baldur's Gate games operated. Some complained about the shift to turn based combat, and the change to 5th Edition rules (The first two BG games used 2nd Edition D&D rules), and most of all, they complain that Baldur's Gate 3 looks more like a sequel to Divinity: Original Sin 2 or Dragon Age Inquisition. Seriously, what did they expect? This isn't BioWare working on this game, and I prefer that it wasn't BioWare, they already got their hands tied up with Dragon Age and Mass Effect, to name a few BioWare/EA games I love.
I can't ignore the hypocrisy in these complaints. Divinity: Original Sin's gameplay was inspired by Baldur's Gate, and as far as I can tell, no one had any problems with that. In fact, Dragon Age and Divinity: Original Sin were inspired by the Baldur's Gate games. They stood on the shoulders of a great giant and learned from it, and then went off and did their own thing. Now the game that inspired them is coming out with its own sequel, and now some of the fans are complaining that it looks similar to the games it inspired? Come on, now. This craziness needs to stop.
Sorry but you're completely wrong. People absolutely have justification to complain and to be angry. Your whole premise here is that people who loved the original BG games and/or who love cRPGs also loved the D:OS games. Wrong. I for one do not see any relationship between the original BG games and the D:OS games. It is absolutely reasonable to expect that a Baldur's Gate game, a D&D game, would NOT be anything like a D:OS game. Heck even Larian devs themselves, including Swen, have said yes they agree this game should not come across as D:OS3.
