It certainly was more wide spread than the community was willing to admit. And a phenomenon not limited to D&D. The worst GM I've ever heard of (second hand) was Vampire Storyteller. Absolute killer DM who loved using antediluvians and werewolves to absolutely shred PCs.
People make that reference as if it's a gotcha. TMNT was a small indie comic when tortles first appeared. Their popularity exploded with the cartoon and toy line (1988). Further, tortles were a Mystara race and part of Basic until that line was ended. Outside of Red Steel and the ill fated...
It's also worth noting that a lot of "fans" of a given property don't actually like any specific version, but a Platonic Ideal of it.
Topic at hand: if the Dark Sun 5e book was literally word for word the 2e version reprinted, there would still be fans who complained they weren't getting...
Oh adventures should be interesting in both definitions, but I don't consider the interesting part gambling during char gen for a playable character.
But that's not what this thread is about. Carry on.
You can play Doom on a TI-83 graphing calculator. That doesn't make it a gaming console nor the best way to experience Doom.
But humans are nothing if not resourceful and if all you have is D&D shaped hammer, every fantasy setting under the sun looks like a nail.
I would care if someone said "let's play Axis and Allies and then busts out a Clue board, Monopoly tokens and the Pop-O-Matic™️ bubble and said how flexible the rules to A&A are.
My problem is that D&D was never as modular as people thought it was (it's nearly impossible to change the magic system without effectively rewriting the game) and the only reason earlier D&D was modifiable was because it was never well balanced to begin with. I don't feel D&D is any more...
I mean, if you got buy in from your players, you could limit character options to only Lawful Good human fighters and say you are running Camelot. But realistically I question why you are using D&D at that point.