When I first bought BG 3, I literally went in expecting it to be like DOS 2. Now I think people who say this game is like DOS 2 have either not played it, or are talking out their ass, and are salty that the game is turn based.
I’m not certain of the worth of assuming people are making the comparison without having played BG3 or, to use your charming phrase, that they are ‘talking out their ass’. All opinions are subjective but there are many who find there are some tangible similarities with DOS and BG3.