I have said it before, so I will ask you to be patient with me.
The job of sports play-by-play is nowhere as easy as critics sometimes seem to think it is. Critics have a right to criticize, yes. And their criticisms sometimes (if rarely) make the product better. But the one thing I always wished people would do before ripping on me was to try it themselves. Take a little dictation recorder and go to the top row of the bleachers. Then be a star. You'll learn more and and gain a sharper perspective than you might have thought possible.
Dave O. is a solid, if unspectacular PBP guy for WCBB. Doris Burke is one of the best color analysts in the business, and is in constant demand. A key to understanding her is that she takes her work (and herself) rather seriously. She isn't a clown, as some analysts are. She feels a responsibility to advance the game generally and WCBB in particular. And yes, because of this she can be a little preachy sometimes.
I am not invalidating anyone else's opinion here. Just adding my own. I spent 40 years trying to get really, really, really good (you know, UConn-grade good) at sports broadcasting. I don't think I ever achieved that goal. Sure was fun trying though!