I wouldn't rely on that. Especially not compared to a double-action pull. It's possible to get one which has a lighter trigger (police usually specify heavy).
Usually the Glock AD I hear tell about are finger-traps. Holstering in condition one is a common and reasonable (whereas disassembly in condition one is surely not). In the AD scenarios the trigger finger normally kept up and pointed straight is forced into the trigger guard (by a protruding edge or something) as the Glock descends into the holster . The momentum of the piece comes to bear on the trapped finger via the trigger. BAM!
BTW I have 20 Glock 17 mags because I got tired of reloading at the range.
“Usually the Glock AD I hear tell about are finger-traps. “
I’ve also heard of cases where the trigger gets caught on clothing while the gun is being holstered, and people react by pushing down harder.