Are you kidding? First of all, it is absolutely an advantage to have three pitchers considered aces, rather than one ace and three or four less successful starters.
Furthermore, in your infinite wisdom, with all due respect, you missed the fact that with two wildcards teams there is not likely to be a race up until the final day of the season a la 2011. If 2011 plays out again then the Sox and Rays aren't starting their best pitchers leading up to the final game. They know a week before that it comes down to one game. Yes, they likely set their rotation up for their best pitcher in the WC game, and a team with multiple top tier starters is better set up in that scenario than a team that starts verlander in the WC game and has Fister in game 2. That's not specious, that's reasonable.