For example, pocket holsters are pretty popular but I wouldn't want to shove a loaded gun back into a pocket holster that's in my pocket. I would rather take the holster out of my pocket, put the gun into the holster, and then put the gun and holster together into my pocket.
I think there are similar concerns about reholstering one handed with a belly band. Not to mention a Smart Carry holster.

What do you guys think? Is it a vital condition for a good carry holster, important but not vital, or a concern that's reasonable but maybe overrated?