I speak to Jelme offsite, and basically it comes down to he wanted to 100% ensure he got the #1 pick. He'd been planning to WO the game since he got eliminated from 7th place, about 2.5 weeks before the end of the season. I don't know whether the name of the team he was giving a WO to played any part in his decision, but my impression from IMing to him was that it didn't.
That said, I think it'd be delicious irony if the WO tiebreaker rules were such that Jelme winds up with the 2nd pick.