Can someone explain to me the actual purpose of Arrietty's snatch game... and also...?

Okay Jewels and Butthole coming for Arrietty's gig, amazing! But also they where like my favorites with Onya and Acasia up there as well. Horrendous snatch game, but like I'm just shocked that Arrietty wasn't in the bottom for that weird pink demon who stole Acasia's Trisha Paytas voice.

But maybe I'm missing something, is this a bit she does? Is it a meme thing? I feel like the fact that Arrietty was doubling down meant there was purpose to her choices. I'm just lost on how weird this Snatch Game was and how the bottoms and tops where chosen. If anyone knows if Arrietty was doing a bit then please feel free to enlighten me.