I don't use a mac all the time, but on the other hand, I can't think of a single instance in which Flash caused my browser or the machine to crash.
Somebody else posted that they've looked at crash reports in Safari and discovered that they were all from flash plugin which may be true, but I've certainly never had that experience on a mac, and absolutely not on a pc. If that is the case, then how is that solely the fault of Flash plugin, when flash plugin works perfectly fine on other macs?
When you take into account the recent change on their App store developers agreement, the hypocrisy in this press release reaches a staggering new level.