No social media at that time when Don and Howard were calling the games. Don didn't put up with any crap.
I like Romo calling games. He does a good job.
But remember - during their MNF run, Cosell put out a number of comments, or expressed opinions that rubbed a lot of the viewing audience the wrong way...and both Merideth and Frank Gifford would speak up against him.
Back then, it had to be a great number of phone calls and letters that made an impact by the masses to make known their concerns, dislikes, or outrage - and often it produced results and changes.
As to Romo and all the other analysts on game telecasts - I have no disdain towards their work. I'm like others who expressed their views previously - I'm so tuned in to the action on the field, the commentary by them - and the play-by-play announcers - is just background sound.
Their worth comes in when they explain something that happened on the field of play that isn't clear\ puzzling to me, and others viewing the game.