When an Lee sin suddenly pulls a one time Zhonyas off, isn't that bad gameplay design?

Because you never expect it. Just out of now where when you are about to kill Lee sin (or any AD champ), he pulls off a random one time zhoyas active. You can't really account for it because you still perceive Zhoyas active as a mage thing. Not only that, but its not consistent enough to become accountable. If I know a champ has bought zhonyas, I can expect them to use it.

But when Lee sin does a one time zhonyas active, how am I to account for that? Am I suppose to check for every AD champ that bought that stupid hour glass item? Is it even fair that AD champs have access to that one time Zhonyas active when the already have a barrage of AD/MR items? Can mages have access to a one time Guardian Angels?

It seems unfair and bad gameplay design to me and should be removed for season 9.

thanks