Hot take - Kesling would get ripped (and rightly so) even if he didn't follow Ward. There is no doubt that he's following a guy who made the job look easy, but I'm not comparing Bob to John Ward; I'm just comparing him to other PBP guys of today.
He gives you no sense whatsoever of the play that is developing, even if it is a big play. I don't know how many times I've listened to him call a big play, say, a 50-yard TD pass, and he'll call it like this:
"Hooker back to throw. Looking. Pass...complete! (multi-second delay, crowd roaring) To the 20, to the 10, to the cheggarboards!"
I mean...what kind of pass? Where was the ball caught? Who caught it? Then you see the highlight, and it turns out it was Tillman making an acrobatic catch at the 40, he makes 2 people miss to get to the 20, and then from the 20 to the end zone he had already outrun everyone. But Bob misses all of that...all you know is that the ball was at midfield, a pass was thrown, then all of the sudden the guy who caught the pass is 30 yards downfield, running into the end zone.