With Erik's 7.08 he did an OLL algorithm that is not the usual one he uses for that case. He used it because he knew it would solve the corners and by luck he also skipped EPLL. Simples.
What? That is so not true. Everyone uses that OLL algorithm for that case. If it would have been another corner setup, I'm sure he would have done the same algorithm. As far as I know he was like: This OLL case... Ah, sweet, the corners will be done, I will have an edge permutation! Or a skip.

(Btw if he knew it was going to be a skip, his U2 at the end would have been much faster, I think.)
The mistery of him forcing that PLL skip is not true in my opinion. Imagine: You got an F2L done around 5-6 seconds in competition. Would you be starting to think of COLL? I don't think so.