Clarence had already sent everyone out by now but looking around the ruins, or even by feeling around the ruins using his tattoo, he could see that quite a lot of spatial cracks have been developed.
He didn't know what would happen if he failed to even withdraw the ruin back into the tattoo. He was sure none of them would be able to make it out of the spatial cracks alive, but if there was any high ranked person who was to make a move, they could easily be saved.
Like it was mentioned before, the breaking apart of a level four ruin wasn't something the rank four creatures inside it could handle, or even rank five for that matter.
Only at rank six would one have the capabilities to save themselves from the spatial cracks of a level four ruin but there wasn't anyone at their level here.
Even though the beast duo had combat prowess at rank six, their physique wasn't at rank six, or they could've considered letting them face the brunt of the attacks.