It's like in a platformer, when you fall into a pit. You would die, and go back to a checkpoint. Having to go back to a checkpoint isn't a soft lock at all. This is the same sort of thing.
It's a challenge. You gotta time the jump. If you time it wrong you won't get it. I've done it many times. I'm sorry you're struggling, but it can be done. If there are too many you can just keep standing up, and move towards the stairs. Then leave the room, and reload.
I hope this helps.