My opinion only - I think it is okay to have one thread outside of the Running Thread dedicated to this. This info can get lost (hard to find) very easily in that large thread.
Technically this was the first thread posted specifically on this news. I thought it made sense to have it’s own topic because I’m not often in the running thread and I see that as more a general running discussion thread than something specifically Disney related.
They always include Expo day in the race weekend dates. It doesn't necessarily mean yoga, but it seems those have been selling well so wouldn't be surprised.