From what I was reading, both the old trans and the new CVT have trans warmers which are connected to the radiators. If it's getting radiator flow, then it should also be getting cooled as well. Still, they make heavy duty trans coolers and engine oil coolers for the 4th gen... just not the 5th gen. The Honda Ridgeline uses a heavy duty trans cooler, but a cooler is only as good as the radiator feeding it

I can understand that CVTs need warmed up more than they need cooled, but it would still be nice to see an all season trans oil cooler for the 5th gen. The newer trans oil coolers have bypasses that engage until the fluid gets warm, so you don't have cold fluid going through the trans cooler.