As the electric door lock fails open in case of loss of AC the checklist actually calls for the door to be locked manually (making it impossible to open from the outside). As if one would not have enough other problems after losing all generated power. Getting out of my seat to lock the door just to be locked up in case of a botched landing wouldn't be foremost on my mind under these circumstances.....
This situation would only arise with loss of all generator power, which makes it an emergency situation, and the commander may deviate from
any procedure during an emergency in the interests of safety. I'd leave the door unlocked.