How exactly is Agent Washington underrated when he's been the focus of multiple seasons?

Also he wasn't born in 1989, he was born in 1971.

@Modnar Resu Yeah, it was a mistake. I'm sorry. Also, I think that whenever people think of RvB, they think of Caboose, Simmons, Grif or even Donut. What about Washington? He is a much better straight man than Church!