I'm glad to hear people saying that this spot was confusing and not a good ad for the show! Our family is going to New York in August and seeing 3 shows - Priscilla is one of them. Honestly, the best thing about that preview is that it has probably lowered our expectations, so we will probably end up enjoying the show even more once we actually see it! Our 10 year old thought the cupcake costume were hilariously random.
We are Broadway virgins

(like I would imagine most of the Americas Got Talent audience would be) so only I have even heard Will Swenson, and that is only because I came on this site to get advice about shows! So my husband, my 13 year old and I just kept asking ourselves "who is that guy supposed to be?", "why isn't he singing?", "I thought this was supposed to be a musical about drag queen's, those 3 ladies singing weren`t drag queen`s, where they?". (10 year old was too busy laughing at the cupcakes to participate).
So... if we hadn`t already got tickets, I think that performance wouldn`t have compelled us to get them. But... I remain optimistic (based on what I have read here) that all it has done is lowered our expectations, which will make our experience of the real thing better!