Some HLS playlists can have extremely limited information so to accommodate this we need to make the Audio track support having almost no information. This isn't ideal but it's really the only solution.
This was implemented to know the difference between services explicitly stating 5.1 channel audio, to a service explicitly stating 6.0 channel audio that is likely 5.1 channel layout.
However, since technically both are 6 channels, this is unnecessary and just causes complications.