It is a bit odd. Although you and I seem to share the same luck, just directly opposite. I have 3 pieces of Beast Lord (Shoulders, Helm, Legs) and have won exactly zero pieces of T4, despite being Exalted with the Violet Eye and despite a few clears of Gruul's Lair. One of which saw Gruul drop 2x ranged T4 tokens, and Friday's clear where HK dropped the ranged token.
Ah, well. I've got better, or at least a respectable sidegrade, in every slot. It looks to me like having my T4 set will just be a point of pride, and there are a lot of younger Hunters who could actually use the items as decent upgrades.