Keenser was never annoying (to anyone but Scotty
). I mean, what did he actually DO in the film that was so bad? Whack Scotty on the back of the head? Say "Me"? Climb up on the engineering console? None of that's even close to the Jar-Jar level of annoyance.
I mean, Keenser actually had a job which he was good at. And he didn't say much. What's wrong with that?