Well that's just great. Gongenzaka finally squirms free, and frantically launches a set of vines over. "YUUYA-!" he shouts, still partly at the hole. Presumably at least, this will take the other out of the path of the thorns, but...

"GRAB ON!"

It's not a 'snatch'. He's giving the choice- or at least, asking before any grabbing.

In fact, he won't even grab until Yuuya takes a vine first.