I think I get the gist of your thoughts OP and generally agree. I think they've hedged their bets a little too heavily on the cinematic aspect while under the bonnet things are not as concise as they should or could be. I also think the direction of the game lacks clarity. There's too many things pulling in different directions which just scream a chaotic approach to development.
The premise for BG3 should have been abundantly straightforward; take what made the previous games such a success and make them better with all the benefits of contemporary technology and the new D&D edition Instead, they divested themselves of some pretty fundamental game mechanics in favour of what they are already familiar with. You really shouldn't make a Lasagne and decide it would be better off with cauliflower and coconut oil in it.
