Lol it's a fun item to get. Almost no one gets it, so it's never expected. It's funny to tower dive the enemy when they think they're safe.
Still though, it's not worth it as an item. It's too expensive to get, and it only blocks like 2-3 turret shots which is only like a few hundred damage-you're best off just getting something more important and beneficial to the team.
IMO they need to give it the Aegis of the legion treatment, combine it with another aura item.