EESDL, you're right; each sidestick has a takeover button which disengages the opposing side stick. Even if it had been impossible to free the ill-advisedly placed camera, the aircraft could have been flown normally from the other seat with no wrestling involved.
As for the recovery, once the obstruction was freed, the aircraft would have recovered itself to 1g flight. Put simply it would continue in stable flight where it was pointed. If a spin is being generated along the lines of "hero flight-crew saved aircraft" it is, to put it mildly, very wide of the mark.
Last edited by ShotOne; 13th Feb 2017 at 16:33.