What would likely happen if a climber went over the side at the Hillary step?

I chose HS as it's so narrow and steep but there are plenty of other areas you could apply this scenario too on everest.

Say a group all fixed to the rope and somebody fell over the side. What would the likely outcome be, would they drag everyone else over, would they all be able to get back onto the ridge or would they likely not have the strength to pull themselves up.

Maybe the rope would snap , I guess the Sherpas would be left to drag everybody up one by one?