I'm using espn's Expanded II pitching stats, and they say his 1107 are the most in MLB, not just AL.
Yes, he has the extra start, but I think that shows Cora relies on him more.
I think Sale will start 33 games this year because the Sox to date have played 48 games, 30% of their schedule. And don't forget that in his first four starts he averaged just 91 pitches. Since then, 106 pitches/game. 22 x 106 = 2332 more pitches.
So I do think he is on schedule to throw 3400 pitches again this year. Last year that seemed to be too many.