I think it might be that it's easier to change fills and everything when it's programmed. And maybe he hadn't rehearsed the songs properly? I've gotten the impression that so many bands come unprepared. So programming might not say that the drummer is bad. To me it rather says
1. Drummer hasn't rehearsed enough
2. They want to polish the fills and so on
3. They're in a hurry
4. They just want a more processed sound
5. Just plain laziness
But i love the fact that it seems like these guys can actually play their instruments and tyler seems to be a good singer too.