Gokudera will only use his dynamite where it's acceptable, like on a training ground. He's superstitious and a bit too cautious on things most people either don't believe in or can't see. Felling trees would not be the goal, and he imagines there could be some powerful forest spirits, or he might accidentally set off a golem or wake up something he shouldn't. Nope, just going to limit dynamite to the training grounds!

"We'd both be stuck," He responds and isn't so bothered by the webs. This is definitely one of the more strange experiences he's been through in his roughly fifteenish years of living.

"Wasn't there supposed to be a grail?" The whole point of this quest...?