Is it only an awful decision because you can't get paid for posts in off topic? I didn't move it but it doesn't really belong in there for two main reasons. One, the league probably isn't even going to go ahead and regardless of whether it does or not there's nothing to gamble on it yet other than maybe if you wanted to put money on whether it will go ahead or not.
This is the problem with the Gambling Discussion board and a symptom of signature campaigns wanting posts in the gambling boards as people just create threads for every league of sport in the world and every possible permutational of discussion on the subject so it's become more of a board for sports discussion rather than gambling discussion. I've literally seen people create threads in there for sports or leagues they've even admitted they're not even interested in. Merely discussing sports should really be in off topic or even its own Sports Discussion board but if it was in Off Topic people probably wouldn't post in there since they can't get paid.
Looks like theymos moved a similar thread to P&S recently as well:
https://bitcointalk.org/index.php?topic=5285284.0