He does what he can and Zer0 really is doing all the work, so he can at least do something about it. Especially seeing how he's the one that triggered the trap. However, in doing so the plant had to let go if it's current meal for a much larger bit of food.

So the man is saved, but the cost, it happens to be Reinhardt struggling against those vines trying to fight them off. The problem with his hammer is that he needs room to swing it. The vines and the jungle make that difficult.

He sees the exclamation and Reinhardt swears he's not going to let this man down. He's worked so hard!

"My arms!" He calls out. "And then try to grab the man away!" Because as soon as his arms are cut free, he's going to swinging his hammer. Swinging it so hard that fire comes from it.