The games that Vistrite listed in his post (where he asked about their differences from Morrowind) refute this statement.
As Ar correctly pointed out, sometimes you want to immerse yourself in the game world not only through your own imagination but also with the help of graphics.
In my opinion, nowadays, old games are mostly played for nostalgia, with the exception of those that are focused on multiplayer (Heroes of Might and Magic, for example).
Well, then what is the argument about?

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!