I'm glad he chose to go with just 11 pitchers. I've been making that case for many weeks.
There is no need to worry about options for the playoffs. They don't matter.
I see a number of reasons to go with 3 catchers:
1) Swihart can also play 1B and OF.
2) We can PH for our catchers 1-2 times every game.
3) We shouldn't need to PH for anyone not a catcher, except maybe for Kinsler or the platoon situation at 1B.
4) We have no great defenders on the bench that make a big difference as late inning replacements, except maybe at 3B, if Devers is in the game. Even then, is the upgrade to Nunez better than the upgrade of PH'ing for Leon?
5) Since Swihart, Nunez, Holt and Peacre can play multiple positions, so the 3rd catcher really doesn't hurt the rest of the bench much.
6) With 5 dayds off before game 1, and 2 days off in the 7 day series, we shouldn't need 12 pitcher.