+Support to allowing this for maintenance as they are no real threat to any combatants and/or SCPs anyways, kind of a dick move to be killing them during repairs imo.
-Support to SCPs, while waiting for staff sucks, having an SCP OOC for that duration of time would be harmful to gameplay/RP, MTF would have to wait around forever to get the site back to fully functioning, even though the SCP is causing minimal harm. Also, not every SCP player I've seen is honest with actually waiting the time of breaking so I could see them using it as an excuse to be OOC even if the door breach is invalid, thus keeping them out longer and possibly getting MTF killed another way. Of course maintenance could be using it is an OOC excuse but if they were to get caught doing that, that could always be a branch punishment.