Still, with everything concerning endforce applied to the opponent, there isn't a difference in danger.

The pressure makes it easier to build smaller, and that is the BIG advantage of FP.

Disadvantage, joints will leak easier and harder. Dangerous, not really. Annoying utterly.

Concerning mechanical damage and things exploding.
The worst we have seen for Pneumatics are pierced bottles (big billowing white clouds), launched rods, destroyed ram ends and broken off pivots/connectors.
And that for LP as FP.

Fun as long it happens in the arena, to the opponent.
But during testing or a demo , it's back to the workbench and improve.