"Asspull" was probably too strong a word. It's just that I'm having a hard time believing a character doing something so dumb. I mean, she could've waited after Hinata caught the ball before she tackled him.(which would've also doubled as a victory hug
) Hence, my probably misguided search for another reason for her actions..
Going into wild guessing mode, Yui's devil costume might hint that she will continue to prevent, intentionally or not, "ascensions" as opposed to Tenshi who tries to bring them about.