I don’t know about that “letter”. Whining about announcers not giving “my team” enough attention seems bush league.
Romo’s job is to build up the game to hold an average viewer’s attention by pandering to the lowest common denominator. This is especially true on a big holiday broadcast where the point spread was large.
If you are looking for analysis, listen to Eric Wood on WGR; he breaks down each play, gives personnel and formation and assesses the success or failure of each play as the game goes on.
If you want something specific, you need to know where to go for it.