Eh, some people remember different things. If the humor doesn't land with some people, I can see how they forget some of the things.
I like Holy Grail, but I stand by my overrated statement.
On top of that, the quotes from the movie get rather grating when it isn't one of the Pythons doing it. Yeah, you're not being funny just going "Ni!" all the time. Yeah, I'm talking to you. Yes, you. You know who you are.