This is why I tend to avoid Ruger firearms for any serious use. A gun that is down due to sloppy QC and away at the manufacturer is as good as no gun at all.
My guess would be that most consumers, me included, don't put their arms to use you would consider "serious".
If you doubt the degree to which poor or abrasive customer service can influence customer satisfaction, read any car forum in which someone writes with white hot rage at his warranty claim being denied first by the dealership, then the district manager. Warranty obstacles create lasting ill will.
I had a P95 that failed in its first range session. The trigger moved but the pistol wouldn't fire most of the time. I sent it back, received it a few weeks later, and its never demonstrated any problem since. It's an accurate low recoil arm; I know I am not the only one to regret it going out of production since.
The P95 isn't as nice as my Sig239, but I also didn't expect it to be.