Oh yeah, that standing split's just a cute "just standing around" pose. I think that since she is a superhero with stretchy powers we're well into the realm of utterly impractical, so imagine all the dumb gymkata you can shake a pommel horse at. I've learned the names of a zillion balance beam and vault moves in the past few hours trying to figure out to describe her kicking some goons lately.
Thanks for the link to the account, still! Fantastic skills there.