True on the time. Most people don't carry a spare magazine, let alone a backup pistol. Although, lots of people carry knives as tools and forget they can be weapons as well. But back to the topic, good on them practicing and training. Maybe a class and clearing jams would be a great class. Because 7 to 10 seconds is a long time, should be able to clear in less than 5. Granted, I'm not a pistoler, but I've had to clear a good amount of jams.
For a true double feed, 7-10 seconds to get back into working order is actually reasonable. First you have to recognize what is happening because a non-diagnostic, immediate action (i.e. tap, rack, bang) won't fix it, but that's what you try first unless you see the double feed. Then you have to strip the offending magazine, which may or may not require locking the slide to the rear depending the model of gun, then you have to rack the slide a few times vigorously, then reload, and finally resume the activities that were interrupted.
Other, simpler malfunctions are simpler and quicker to fix.
Going on the road for a few days. I decided to take the P320 for road duty.
Left the P226 w/light on the bedside for the wife.
Well, the wife should have the superior weapon, but you should have one for yourself as well. The P320 and all of those other new fangled plastic pistols are just a fad! A fad, I tell you!