Some of us here are trying so hard to make this point too. The one why Solasta really kills BG3 is that it does 5e right.
That's said, I have learned that part of the issue is that Larian is not just trying to appeal to 5e fans. You have a LOT of people out here who really hate 5e rules and want the game to be more like DOS or even other video games totally unrelated.
But, this game is Forgotten Realms. It was marketed as a 5e game. So, in my opinion, the non-5e people should take more of a back seat. I know that sounds harsh, but making a D&D world game NOT true to D&D is like throwing elements of Star Trek into Star Wars and saying it's okay, they're both Sci Fi. Faerun has ALWAYS been about D&D. So the game should be more true to D&D. It should not be a quasi-D&D kinda like DOS game.
Yep, they want mass appeal. So that is leading towards jack of all trades and master of none.
Have you not noticed a pattern in what they are trying to do? People did not like the dice rolls and hate the RNG. Oh, we will give you loaded dice so you pass the checks way more often despite your characters having poor modifiers or stats.
Oh, we want everyone to hit all the time even at low-level DnD play. We will give everyone ez-pz advantage for both spells (high ground) and melee (backstab) and lower AC across the board so everyone can hit way more often for morale.
Oh, you are not used to resource management and spell slots? No problem. We will make resting unlimited and without restriction so you can have all your spells up all the time and not worry about needing to save them for big battles.
At this point, I am convinced they will introduce a game mode with no dice at all for those that hate any RNG element. And maybe the image and illusion of dice will still be there, but you will pass 100% of non-combat checks.
They are scared to alienate anyone because that is less revenue. It is a lot of people who are interested in this game that only have DOS1 and DOS2 background with no knowledge of 5e mechanics and the training wheels (homebrew and Larian-friendly building) have to be put on so they are more likely to buy and play the game.