Agree. I mentioned before that not flipping the safety might occur more in non standard draws and positions. Seen that a few times.
When I got my Les Baer 9mm, I told myself I'm going to keep a working grip safety. I tuned it such that it deactivated with the slightest amount of pressure. I shot the gun for nearly 2 years without issue. Then one day at a steel match, I failed to deactivate the grip safety on the fastest stage, smoke and hope, not once but TWICE. 2 years and lots of practice without incident, but one high pressure / speed to deliver scenario and it / "we" choked. It was deactivated the very next day.
The thread about a LEO having doublefeed jam at the worst possible time seems relevant to our discussion. I have seen numerous malfunctions at matches that required not just 20s to clear, but minutes-to-never, and multiple people. That sort of thing has definitely directed my choices of defensive weapons. As well, experienced competitors can often clear very challenging malfunctions quite rapidly because they have subconscious mastery of the skills required.
“There is no growth in the comfort zone.”--Jocko Willink
"You can never have too many knives." --Joe Ambercrombie
I often think that a backup weapon that’s easily accessible would be as / more useful than a spare magazine.