Atma's Impaler

I'm curious, why does Atma's still exist as is? I really don't think anyone ever builds it, except maybe GP as a 6th item, since tankiness and crit chance almost never coincide. It just feels like a huge waste of money. I understand that AD + Tankiness items are generally bad for the game (league of fighters) but would it really be that unbalanced with something else instead of the crit chance? I feel like a hexdrinker kind of thing for physical damage wouldn't be that terrible. Just some early defensive stats when you're getting destroyed by an AD champs, but you still want some damage (Riven, Yi, Yasuo, etc)(Basically people who would build hexdrinker in the AP case). Maybe with a cost ineffective upgrade (a la Maw of Malmortious + Mercurial Scimitar )