So the nature of those worms in the cannister room was inherently hostile, too?
And goes back to what the holographic engineers were running from, what killed them? Something in their nature or another life form's nature was destructive.
Why where the cannisters in a sealed containment room that when opened made them leak, while the others were in a ship's cargo hold with no apparent signs of stasis needed?
Assuming they are the same thing, which may be a mistake.