I’m really feed up to see annoying new (useless) tab for each new addon update.
And more than all other things, it’s doing it during the time where you are doing something and disturb order of the tabs.
Nothing should be able to disturb the action of a user when he is using a browser, should be UI first rules. User decides, browser comply.
So, it should be a mandatory option, or a right, as you wish. But, by not doing so, all you’ll be getting is than users will disable all update of all addons, which is dangerous.