If you use this kind of logic to support why those interested should not even have an OPTION for Flash, it should apply to every single App in the App store too. Basically, anything outside of Apple's control has some potential to crash Safari and/or Mac OS X. Perhaps, using this logic, EVERYTHING not created by Apple's own hands should be blocked per this same reasoning?
And frankly, my own Macs will crash from time to time, but I never deem it a "piece of $#!t". But I might be in that "savvy" group. My Mom's Mac crashes from time to time, but she doesn't deem it a "piece" either. Even the average Joe understands that computing devices crash from time to time. As long as they can get rebooted, they deal with it and move on. It's hard to picture them holding it against a device forever, nor putting the device down to all their friends & family. Play that scenario with an iDevice crash, have them gripe about it to their friends, and those friends will be quick to say, "I run Windows, and you're griping about a crash?"