Although he's with Fox, and as such rarely heard from, Brad Faxon is unquestionably the golf announcer with the highest GCA acumen. Fax "gets it" and knows how to translate it into common, understandable sense for the average Joe-Sixpack viewer.
Yesterday it was either Kostis or IBF who suggested lowering the lip of the left side (fairway) bunker on #10. He was describing this after Chaz Reavie landed in it and left his sand shot short along the front side of the green with a strip of kikuyu collar on his putting line to the pin. Having played #10 multiple times and having been in that bunker on occasion, I can't remember thinking the lip was th problem. I suspect it's ultimately about the majority of the pros remaining unable, or unwilling to figure out where NOT to put their drives!
Announcers, regardless of whom, are mere cogs in the money wheel of the pro tour. They will near always believe some subtle feature of the golf course that impedes the princely-paid player is the problem, not the striker's mental capacity.
The guy who could really "move the needle" if he wanted to would be Jim Nance. Nance actually understands a reasonable amount of GCA, but only rarely delves into it. I once asked him on the WF patio why that was and his answer was simple: "The players are the story on any TV broadcast." I suspect that's the company line, but he didn't deliver it without his decent and silky-smooth sincerity.