I've just seen this way too many times before.
When the old blowhard Howard Cosell - the man whose picture is next to arrogant narcissist in the dictionary - was calling games they used to have contests where drunk fans won the right to throw a brick at a large screen TV when Howard was on the picture. Don Meredith was a bumpkin who didn't understand football.
Then they got replaced by OJ Simpson and Joe Namath on MNF and all of a sudden the same folks who couldn't stand the announcers told us how much they missed it 'back in the old days when Howard, Giff, and Dandy Don told it like it was.'
Frank Broyles was a droning imbecile when he was a broadcaster. The moment he left the booth people talked about how much better he was than the lounge show acts that followed him.
And for the life of me I can't figure out the nostalgia people have for Pat Summerall and John Madden. Pat Summerall made Verne Lundquist look like he was actually paying attention to the game. Go back and find films of Summerall calling a game. Virtually every single one of them has something like the following:
"Aikman lets fly.....he hits Harper.....Alvin Harper and Harper is gonna go for the touchdown for Dallas.......I beg your pardon, that's Irvin. Michael Irvin. Touchdown Cowboys." This dude begged more pardons than a convicted felon. And John Madden........I mean, he doesn't like Frank Caliendo and I think it's because Frank's impersonation is a little too dead on accurate for Madden to like.
I can take you back to the 1985 World Series and letters to The Sporting News moaning about how terrible the three announcers were during that series - Al Michaels, Jim Palmer, and Tim McCarver. Five years later when they were never going to be together again, fans talked about how great they were together.
The one guy I never heard any complaints about was Keith Jackson.