Is it deceptive? I remember iterating through minor versions of Flash just to get Adobe Connect (a product of the very same company, just to emphase) to run without crashing on OS X. Yes, Flash on OS X is horrible mess, even more on Linux. I vastly improved my browsing experience on OS X by actually following Grubers advice and only have one Browser with Flash enabled (Chrome). And even there, it is the single point of crashes(tm).

So this notion is not very surprising.