I thought that Disney pretty standard turn around time for estoppel based on my conversations with our title company (usually a week to 10 days) but if disney has something "more important" to work on estoppel kind of gets pushed to the side (in dec this happened due to preparing/sending out member dues supposedly). Perhaps with Poly sales ramping up the people who handle/provide estoppel info are working on getting new members set up? (Just a guess obviously)
Plus the timeshare store typical uses the title company you said you are going through so I wouldn't think that would affect it-but didn't that other poster you mentioned also say that the sale was in foreclosure/default or something? That may have sped things up for them if DVC financing wanted their money lol