"Ok Google" hotword detection not available from every app on SM-T800 topic

So in the settings under Voice, "Ok Google" hotword detection from every app just does not show up as an available option. I have tried with S Voice installed and not installed. I have triedthe searching for "Ok Google everywhere" trick. It just won't show up as an option. All my voice and speech settings are in US English. I'm running IronRom v.1.9 but I've had this problem on ThunderRom as well.

Does anyone have any ideas as to how to fix this?

Sent from my iPad shaming Galaxy Tab S 10.5