The only ones in the industry who can be frank are those who are about to retire. And even then, its probably not wise.
As to the original premise, I've been here a long time, and perhaps glossing over things, but I think this whole site was more frank and critical back in the day. Tommy Knockers and others were brutal to gca's they didn't like. It seems to sort have matured, like football coaches who tried the end around early in their career, but remembering all the bad ones, take it out of their repertoire.
As to criticisms, the hardest ones for me to deal with are the open ended ones, encapsulated in "what might the gca have done better?" I can see specific items, like trying to recreate the 12th at ANGC, but enlarging it for public play, etc. When those topics did come up, it tended to go the broad celebrity route. Fazio redoing a classic course? Has to be bad. Doak? It's great, of course. The critique never got deeper than that, and in some ways was really hypocritical in that if Faz moved a fw bunker 30 yards to challenge modern play he was ruining a classic. If Doak was doing it, they were sure it was a well considered decision.
What was really ironic was they would bash anyone who thought Fazio was only popular to play because he was a "name," while all the while really doing the exact sort of non thinking when it came to playing one of their favorites, LOL>
In some cases, the recreation of certain subtle green contours were debated, as if anyone could really tell from photos. I recall the outrage over some Riviera bunkers. People just "knew" that Faz didn't get the "3D" right from a 2D photo. While I will admit there are many levels of definitely no restoration type work are touted as restorations, when you really look at it, most gca only sympathetically restore courses, trying to keep the look but working within the confines of current situations.
Is it time for more frank commentary? I suspect now that our fearless leader is in the employ of a mainstream magazine he will be under pressure to at least personally write in the professional style that most of those have adopted, i.e., don't bite the hand, etc. Whether that frees the band of 1500 merry participants on this site to take up the mantle, who knows.
Again, my only suggestion would be to try to limit the subject to one course, maybe one hole or one feature at a time rather than broad brush everything. Just my $0.02