I honestly can't see how we'd be "better off" with 1-3 national games per week. I didn't buy the baseball package this because I spent way too much time watching baseball over the last 2-3 years(I still ended up watching 3-4 per week) but consumers consume. If they're not on a network, people will find another way. While you might make a claim about overexposure, anyone can stop from being overexposed on TV by not watching.
The problem baseball has, at this very moment, is that these teams aren't "national" teams. Throw that in the "Football is king" mix and you get no viewers. Baseball needs to figure out a way to conclude their season in September. Playoff baseball can compete with Week 2 of football but with a 12(NCAA) or 16(NFL) season, it can't beat mid-season football. The only way that can happen, and you can't start MLB in March, is to cut a dozen games off the season, lose a few off days and schedule a few doubleheaders. Owners aren't interested in a shorter season, MLBPA isn't interested in losing off days and neither of them want doubleheaders. That can't be blamed on Selig, FOX or the snoozefest of a WS.