Cause if something catches and pulls hard on the cord you would prefer it yank the cable out of the socket and you just plug it back in, rather than either strip the screw and ruin the socket or even pull the entire socket out of the wall. Or if you trip on that cord its much safer for you to have that cord come out and only trip you a bit than it catch, go taut, and send you falling on your face.
He just did to fuck with the stock price like he is known to do but he went too far with the stunt and when he tried to back out he legally wasn’t allowed to; he was contractually obligated to buy it at the inflated price he claimed it was worth.