Do you think some sessiongirls try to avoid piggyback rides?

[Dylan91]

I have watched girl in lift and carry videos showing of their strength by lifting and carrying a guy. They do every lifts you can think of in the video. cradle, curl, fireman, over the shoulder etc etc. except one: piggyback. I even know examples: Ranya Dally. She did one video with piggyback. After that video she avoided to do it wherever she could. Showing off she can do squats with a guy as weight she just switches to fireman's carry instead. And she isn't the only one. I mean piggyback is not the hardest lift. So why not doing it but any other lift?
Do you think there is a reason they don't do it anymore? I can imagine reasons but before I write my opinion on that I'm curious what you guys think. And if you noticed that yourself. Feel free to tell which girl you noticed this on.

[zebra]

I don't know. Maybe they don't wanna feel guys' boners on their backs.