Well, Larian doesn't have to follow the rules. All D&D games modified the rules to a greater or lesser extent (in most cases the modifications were large).
I know. I swear I'm not forcing them to fo anything...
1) Hunters needed a change, now even in D&D they are far from perfect, and in the game they would not work.
It's not impossible. I bet Larian is capable enough.
2) The animations are meant to be readable (Swen mentioned why they look the way they do).
Doesn't mean they need to be excandalous.
3) There will always be many more magic items in the game. The game has to reward the players somehow.
I agree there should probably be more. But currently the quantity is beyond "many more".
4) Weapon bonus abilities are a nice addition that does not significantly affect the balance, and at the same time is an additional thing to do for the character.
This causes significant changes because in 5e you need to get a new trait, feat, or magic item to gain a new ability like this. The problem is that they come from any weapon, not special ones.
5) You have help actions, but it works differently. The D&D version would be terribly awkward in a computer game.
I don't think it would be awkard, I think it would be cool. I can imagine the animation of a character distracting/provoking an enemy and an ally using this opportunity.
6) The potion as an action would be useless. This is a frequently changing rule for a reason.
Trust me, it wouldn't. 1st-level cure wounds is very similar to a potion of healing and costs an Action.
7) Mage and familiars hand changes make them useful in the game.
In my 5e games they are useful. They would me more useful if you could use 5e Help action in BG3, administer potions, etc.
8) A popup multiple times per turn is not the best way to design a fight in the game (in solast it's infernally annoying but that's just my opinion).
That might be true for some people, but others would prefer to control better with a pop up menu. In this case I suggest an option to activate/deactivate the prompts.
9) The ready action will not work in the game. I wonder how you would like to implement it.
Like Firesnakearies said. Or differently. It will work in the game.
That's correct. But to be a good game there's no need to change the rules. At least not in this case.
