This is the most ludicrous suggestion that I can imagine as a developer. The amount of work that I'd have to undertake to "reinstall" is unbelievable.
Moving to FF or Chrome, although a great suggestion from a stability standpoint, sucks from a functionality standpoint if you're using keychain as your password manager as those browsers are not integrated. So great that I can use them to access ebay, or any of the other myriad sites that are blowing up Safari, but to do so, I have to manually access keychain in order to copy pasta my credentials.
Apple just needs to first update their integration tests so that the behavior is triggered, and then fix Safari. That way we don't see this problem again.