It must be maybe a year ago when DB, Chuck Haggard, and Demonstrated Concepts "Rusty" were on a long podcast. One point that Chuck made and IIRC DB seconded, was that when pulled in real life and death fights, pocket semiautos foul a fair bit of the time. He noted all the dashcame/bodycam examples of full size service pistols malf'ing under pressure and maintained the issue is even more acute with pocket semiautos. He may have speculated as to likely reasons for this but I can't recall it exactly.
But I know myself that under match/demo pressure I've seen my grip foul a G19 running a KKM comp that had previously sailed through several thousand calm training rounds without a malf. Adrenalized I was getting TOO high up on the backstrap.
The grip of a pocket sized semiauto doesn't leave me much room for error in the grip is how I look at it.