Earlier quoted context omitted.
People get tossed out of their seats every other episode in star trek. I'm sure I've seen multiple "medical team to the bridge"s due to someone getting knocked loose by the ship shaking and hitting their head on a console.
That and in the future we'll apparently forget everything we ever learned about electrical codes and the proper way to build things so they don't spark and catch fire at the slightest provocation.
That is, sometimes equipment has its fuses bypassed because under battle conditions it is better to have the equipment working in a dangerous state, than not working at all.
So when the ship goes to red alert all the major systems are automatically put in battleshort mode. So a couple of ensigns die rather then the weapons stop working because a fuse blew.