Champion Mastery on Twisted Treeline

Ever since Rito removed ranked 5 team queue completely from the game with the new dynamic queue and stuff, my ranked team and I play a fair amount of ranked 3's, and I personally don't understand why you don't receive champion mastery points for it. At first I kind of rationalized it by telling myself stuff like, "well the game play is pretty different with different objective priority than the main map (Summoner's Rift obviously)." Then Rito told us that they'd incorporate ways for champion mastery in the featured game modes, and I was like well.... it's kind of silly that they're going to incorporate champion mastery onto things like urf, poro king, and even twisted treeline hexakill without taking whatever step they need to just add it to the normal twisted treeline queue. Well those are my general thoughts on this.