That’s true, and I almost think they did that because nobody else is as flexible as her. Because in my experience, if you’re showcasing one girl’s skills, it’s because she’s the only one who can do them. Otherwise why wouldn’t you have everyone do it?
Which isn’t supposed to be a dig at the rest of the flyers for two reasons: 1. That particular flyer’s flexibility looks to be the kind that you’re born with (like hyperextended legs), and 2. Pulling your foot to your face is not a body position anyone has been training for anyway. So I’m not knocking them at all. I would not expect her level of flexibility from anyone as a matter of course. That’d be unfair.
That said, I just know (from HS experience, admittedly) that sometimes when you have a super talented flyer, it’s best to give her a solo bit to highlight her skills rather than prop her up against the other girls whose same skills aren’t quite there yet. That way her skills don’t go to waste, and you’re also not inadvertently undermining everyone else’s skills by comparison.
That’s just how HS cheer has taught me to read a routine, anyway. Could be a million reasons why they went this direction. But that’s my knee-jerk reaction when I see a single athlete being showcased.