I'm cool with Larian giving their own spin to it After all, the original BG series wasn't a 1-on-1 copy of 2nd edition aD&D. However a lot of the current spin looks really badly thought through. The surfaces on cantrips are my personal pet peeve. Not only because it makes cantrips really strong, but also because they cause interference for the melee classes.
That strategy between a melee front line and your wizard artillery is really important. As is the hammer and anvil tactics between the frontline and the rogue. That guy with sword and board is the linchpin. I know he's not glamourous but he's very important in D&D tactics. He's supposed to be in the way of the bad guys! In BG3 you don't really seem to need anyone filling that role. Just hop around, splash some goo on the ground and get the height advantage. I think you'll be hard pressed to get this game to feel like a Baldur's gate game without respecting the class roles and how they interact with each other.
