People dont seem to concerned especially on the nvidia forum, not many people seem to know or are bothered by this. I tried to bring it up but it seemed to be confused with other audio issues people are having. I even see a hotfix for 2017 shields today for hd audio dropouts, i highly doubt its for this issue though.
Someone asked about it on the kodi forum awhile back and a developer said no one is looking at this.
All we can do is make this issue known as much as we can.