User blog comment:YourPrivateNightmare/Hail the hourglass!/@comment-5545048-20130913202404/@comment-5077844-20130914085159

taking all of the above into account:

I already said it could make sense in CERTAIN situations, not as a spammable "just cause" active. IMagine the enemy team has 3 Asssasin's, and you have a. All the assasins wanna jump at you, adn t hey will kill you before you do any good, simply because Naut can#t lock all of them down immediately. 2.5 secs are a nice timeframe for the tank to disable these assasins and when you come back you can shoot them to hell.

Also there are many targeted ults that could mean death to an adc, such as Vi's or Karthus'.

I want Zhonya's as an option to GA, since it's active is more versatile. It's an odd choice, but as said before, it MIGHT win you some teamfights.