its just standard procedure.
each room to open and be workable needs that many people.
i was once invoilved team of 8 for a removal of a splinter. it only needed the dr to cut a bit and pull it out and stitch it back up.

but they all need their right hand man and we need a scout incase something is forgotten or if we misjudge a size of dressing and need a new one from stock, because once they are dressed they cant leave the room