Just an anecdote, but I crewed for a FWD lancer rally car a couple of years ago at the STPR rally up in wellsboro. They had a control arm failure of some sort and went off the road, and the axle was dislodged from the socket (very similar design) just like yours. A plastic bag as a makeshift boot and some zipties later, the car was out from service and back into the rally. Ran the rest of the rally like that, with no failure to the joints of the axle. The joints weren't damaged, the shaft wasn't bent, nothing was out of whack, the impact and the bending action of the control arm just ripped the boot off and took the joint out of the socket, rendering the open diff lancer unable to move. It's very very likely that your axle is a-ok.