Let's be completely fair, Bioforge Darius has always been treated by just about everyone as a joke as soon as it got released thanks to the skin's rather awkward design and its unintended but nonetheless extremely comical allusion to Mountain Dew (a video game character/skin who has not 1 but TWO green tankers on his back and tubes across his whole body, even on what's otherwise a normal axe too because reasons, to fuel his unstoppable gaming power and the skin's permanently pissed off face...).
Calling the skinline as the Mountain Dew Darius was just how literally everyone called the skin, before the skin faded into complete obscurity.
I don't think Riot simply going off and make the skin a fully-fledged joke skin is that bad of an idea. After all, Bioforge Darius by its sheer design is almost impossible to play it seriously without a serious redesign. So why not.