Mikasa said:
And superhumans out-running an explosion blast is hardly a "seemingly unsolvable problem" in this context. Shoot and Knuckle did that a dozen times during their fight against Youpi. They are hypersonic, even if not invincible. This means that while the explosions are still a scary thing, doesn't mean they're unescapable.
There are always liberties taken with the art to create the illusion of close calls. (For example, I have no problem with Hisoka dodging the exploding ref in the first chapter of this fight.)
But I draw the line at things the characters themselves say. If Hisoka says, "I can't fall to the floor or the puppets will blow me up", and then he falls to the floor, and then he says, "I'm going to die", then I expect him to die. Either Togashi is making him lie to the readers (which would be a cheesy gimmick to heighten the suspense; no way Togashi would do that), or Hisoka really does believe that his abilities are inadequate to save himself (in which case he will either die or be saved via deus ex machina).