That’s funny. Have you tried to run ToH or played in it? In my experience, of all the original adventures, that’s by far the sloppiest/squishiest in terms of “run as written” -every single run has been subject to massive rulings work even before you get through the first real door.
The run I played in was blast, but I’m under no delusion that it wasn’t riddled with DM Rulings in every single encounter.
For example (spoiler) there is a cursed magic item that says to reverse the effects of a wish spell. Yeah. 100% on the fly DM dependent interpretation.
I think it’s great to share an experience like that with other groups, but in the case of Tomb of Horrors, I most often hear the stories of how the party died spectacularly! If I ever hear someone say: “Yeah. We beat ToH first try no problem” - that’s when I’d give them the side-eye!