From what I read about the book, Gilligan is like the only showrunner who comes off as likeable (I think one other person did too). Chase, Weiner, and some others are just completely insane assholes, lol.
I wonder how much of that had to do with Gilligan coming off the X-Files which had a not so serious tone a lot of the time so he (and perhaps Carter was similar) "grew" up more easy-going.
The entire BB cast is also considered some of the nicest people in Hollywood as well.