Just curious as I don't see it addressed in forums...perhaps I'm missing something. It's been a consistent offering on weekends and strikes me as strange that there's no apparent explanation.
That's because zta is back for the weekend (Well, I assume the weekend. There is nothing posted yet on how long its going to be around for)
Everyone always complains about "if you offer it every weekend when you say it's a promo, why not make it perm?" All that seems to have happened is they took your advice to heart and decided to make it offered less often.