Hmm... Well, in regards to these two things...
That wasn't Jar Jar primarily (although I would agree that those jokes could have been avoided) it's more of a "animals don't like me" thing.
Since when have MOST PEOPLE(the so called "99%" of Star Wars fans) been against slapstick? What wrong with slapstick? Even then, how many of these moments show up in the movies? I can only think of 3 off the top of my head, and every moment of slapstick (INVOLVING Jar Jar) in the Prequel Trilogy is only in Episode I.
Star Wars started out as a moderately lighthearted series (Episode V even used a little slapstick before Yoda revealed who he was). Episode I was trying to be lighthearted, but no, everyone wanted it to be all "Serious", like "The Original Movies" (which probably is just nostalgia talking, as re-watching Bionicle Movies has shown us) and we ended up with [Shivers] cringe worthy romance scenes in Episode II.
Episode II tried to remove the "behaviors" you listed. It attempted to make him a more prominent character that actually mattered in terms of plot. But, did anyone care about that? Not enough people apparently. Jar Jar's lines in Episode III? Only one: "Excuse me." And take that as you will.
My interpretation translates to: "If I'm not welcome, then I'll leave. As soon as you stop blocking the door."