When Google/Adobe stopped supporting Flash on Android, I thought that would herald its end on the desktop too. Here we are years later and the horribly optimized security risk that is Flash is somehow still hanging on, no thanks to near daily updates.
I hate Flash as much as everyone, but I really think that Apple needs to take a cue from Google and Microsoft and embed the plugin in the browser so that it is automatically updated without any interaction from the user. Chrome has its own version of Flash, and IE in Windows 8 also manages Flash updates for the user. It's not Apple's fault that it sucks so bad, but they could opt to make it easier on the user.