MT's take on the Romo deal is something.

Correct, but even if they raised the salary cap, there will still be a handful of players that command a large share of the cap (which limits the amount available for other players).

There is NO cap on announcers. They could pay Romo a billion dollars, and it would have zero impact on any NFL player. MT might as well be complaining about Jim Parsons making $26 million per year on The Big Bang theory (I looked up high paid actors). Has nothing to do with player salary.
I don't see the problem. Better players get payed more. But if there is a limit that os their real value. If the cap increase enough to hit that limit then more money will go to the rest of the players. Also, if they get the same percentage of the cap but the cap increased they will get more money. If cbs pay a billion to Romo that's a sign that the salary cap is too low.