Everything up to the ride type was great Imagineering. The concept fell apart when the elaborate queue and setup led to teacups. For what it's worth, I'm not really knocking the teacup attraction itself (even though Tea Party personally induces serious nausea) I just think it's the wrong ride type for the concept. Had they gone with a different spinner type I'd be all the more forgiving. Take for instance the classic Musik Express/Himalayas carnival attraction. That ride type could simulate the movement of a slow galloping Carousel and a frenetic spinning, dizzying saucer ride. Combining that with the same projection tech that was to be used here, and you could have the best of both rides and a premise that could explore both the classic Poppins go round and the tea cup spinning storylines. It would have been the better ride type, IMO. Another option could have used a Vekoma's Mad House to recreate Topsy-Turvey's upside down room or a sequence similar to Poppin's visit with Uncle Albert.
Practically ANYTHING would have be better than a rehash of Tea Cups. The IP is most deserving of a dark ride. Anything else is always going to be less then.