Yup it'll be a bumpy road as websites are forced to drop Flash, but eventually it won't be such a big deal. Problem though is so many mom and pop sites were written years ago by overzealous developers who jumped onto the Flash bandwagon, and many of these sites won't be updated anytime soon.
Luckily my Fire still supports Flash, but a day will come when people will look at Flash as they now look at Real Audio. A once 'must have' app that's become totally legacy.