Galio and the Athene's Unholy Grail Nerf

Galio and Athene's go very well together. Coupled with his passive and his fairly high mana costs, Athene's is pretty much a staple item. I forget which patch it was but Athene's was nerfed in regards to both magic resist and mana regen per 5 a while back. Just curious, did Galio get any compensation for this?

He was hardly ever used before and now probably even less so. The nerfs for Athene's weren't unwarranted; almost every popular AP mid laner bought it and that didn't really promote item build diversity. But I believe Galio is extremely reliant on Athene's and nerfing it was a direct (but probably not intentional) nerf to Galio. Much like how Riot tweaked ratios on certain champs that were dependant on Lich Bane (Fizz & Twisted Fate) after the Lich Bane rework (nerf), I wanted to bring awareness for the same issue with Galio and Athene's.

Thanks for reading I would like to read your feedback (like maybe I missed the patch notes with Galio getting tweaked or something).

TL;DR Athene's got nerfed a while back and Galio, who's already struggling in the meta, was indirectly nerfed substantially. Love for the guardian?