Mate is a videogame, they are trying to adapt the rules at the best capabilities possible for a videogame, that still needs to be engaging, not too repetitive. Plus is not easy to include everything that runs through your imagination on a DeD session in a limited size game, please be serious.
There needs to be quality of life mechanics on a videogame.
Obviously you're not familiar with D&D, please check the ruleset before commenting on the subject. This has nothing to do with the type of implementation (video game, board, ...). Also, we're talking about Baldur's Gate 3, not Mate (whatever this is).
It's a CRPG, and many of those are based on Pathfinder or D&D, there was no problem with that (but it was already in my post, you jumped at the first words without reading the rest).
It's too easy to get advantage in combat, making various class features undesirable to use, hide and disengage removed from the rogue's Cunning Action feature and given to everyone, certain spells not worth taking because of changes to monster AC/HP, etc.
I'm not asking for Solasta 2.0, but a somewhat closer implementation of 5e rules would be great.
Having to rely on modders to fix these issues is problematic, since there's no guarantee a mod gets updated.
I haven't tried this mod, it was a very courageous move! But yeah, I wouldn't like to maintain that, especially if that changes the balance in the game: the other risk is going against what the dev intended for their custom ruleset.
I have no big problem if they do their custom ruleset, I enjoyed Divinity: Original Sin 1&2, Pillars of Eternity and other games that were not using Pathfinder nor D&D. Although I quite like D&D and would prefer to have it here, that's sure
But something in-between is disturbing, especially when it's advertised as such. Tactical Adventures showed that it was possible to implement the ruleset faithfully and get really enjoyable combat mechanics.
That, and indeed the balance... now the rogue is clearly over-powered.