Ive been told by bosses that i wasnt professional enough. After being a team leader myself, i can tell you, the last thing i wanted to do was respond to a report's jokes.
So maybe they were interviewing for a very professional person who wouldnt joke around. Not really a people person. If youre more of a people person, face it, we wouldnt be happy in those kinds of jobs. Not that we couldnt force ourselves to do them, but its really no good trying to fit a square peg in a round hole. It only gets us into more trouble.