I do agree that I would like to see some of the rules more closely match table top, but;
I don’t see how a hex map would make any difference. Trying to overlay a hex map over an environment that wasn’t specifically designed for it would be a nightmare. That ain’t going to happen.
Not having grapple makes sense-that is a ton of animation work for all of the different t models in this game.
The camera angle has nothing to do with openness. BG2’s maps were also often basically corridors. This actually makes the maps more interesting for most people, as exploration in BG1 often just meant zig zagging across large open maps. This style of map design allows for more content and encounters to be placed closer together without it looking as cramped and odd and eliminates needing to travel across lots of empty space. It’s a design choice that I agree with.