Having played a lot of DnD 5e and DOS, the game feels very close to 5e with homebrew rules and not much like DOS.
If Bioware hadn't destroyed their credibility, they could have been the ones making it in the way that you picture it, but they have let themselves go... maybe you should direct your negativity towards them?
Last point, games change. Resident evil 1 and resident evil 4 play much differently. Time allows for new ways to do things and make improvements. Why should Larian try to make a game play like a game that came out 20 years ago, when they can make a better one?
