IMO that's a good thing. That has become her trade mark. And the acrobatics are always different. (silks,bungee,trapeze etc)
That's like saying Beyonce dances at every show. It's her speciality. As long as the choreography is different
The difference is that flying around in the air is a bit of a gimmick. It was fresh and interesting the first couple times, but now it's getting stale. It's almost like Pink is using it as a crutch.
Has Katy Perry ever encountered an awards show that she wouldn't attend? She'd probably perform her new single at the Employee of the Month ceremony for her local Wal-Mart if it would help her reach #1.
Must've been long to research all the numbers.
Beyonce is going to win. 
