I did not say they were equivalent, I said they both had the same flaw. that's not the same thing.
Well, no.
If you want to know the actual issue with M. Night, it's this.
He made it big with the "twist" (Sixth Sense). Unfortunately, a twist is not something that you can bank on as a director, and it's also not something visual (a directing style).
Since then, he has repeatedly tried to recapture that twist magic, with mostly unfortunate returns. You don't see, e.g., David Fincher say, "Fight Club had a twist. I'm just doing twists from now on!"
But the issue with him is that while he is a serviceable director (it isn't easy to direct films!) he isn't actually particularly good. Even his biggest breakout hit, Sixth Sense, isn't that great in terms of direction; if you watch it again, you will see that. He does have a good eye for some shots, but there's nothing about his films that makes you credit the direction and cinematography; in addition, there are particular choices made that are often baffling.
It's a bizarre comparison.