I saw after I posted... :(
You're right though. They really should have stuck to gunfights, or replicated a hand-to-hand fight that is done in the books. Doing something like the above just makes me cringe.
But think about this, what materials would be that bulky and still be lightweight(no not Glass Armor guys)? And the bult in motors, how would that make some dude jump 60 feet in the air. Unless they are on another world where there is hardly any gravity, I don't find it likely.
I would of rather seen some gunfights though.
First, Spartans are severely genetically engineered. They were injected with all sorts of crap to increase muscle density, reaction time and bone strength, etc.
Second, MJOLNIR armor is essentially an exoskeleton. The old models were described as something akin to the cargo loader from Alien. It is self powered, and augments the user's strength hugely, and serves as a writers convenience half the time.
Spartans have done similar in the books, but this is the largest exaggeration yet.
