That's a good point. I know just enough about editing to have opinion, but not enough to have an informed opinion. I like to make fun of bad editing when watching movies (which just annoys my family). Good editing is more difficult to spot, though, because it doesn't draw attention to itself - it just makes the movie better.
I heard an actual movie editor say something interesting once. He said that it is very difficult to judge someone else's editing unless you've seen the original clips they had to work with. You don't know if they made a mediocre director look better, or made a genius look worse.
They say that, early on, Woody Allen bordered on incompetent as a director and his 1970s films were saved from incoherence by Ace film editor Ralph Rosenblum.