I've been going back and forth with iFollow over email, and finally got them to understand that club are providing commentary but it isn't working with the video. They've placed the blame with the club:
"Unfortunately, it is not possible to listen to the audio-only product while also consuming the video. This is due to the fact that our service only allows one device at a time under one account.
We have shared your comments with your feedback regarding the functionality of this with our team.
While the club are providing commentary for audio-only, they are not providing the same service for the video. This was agreed upon by the club and, should you have any concerns regarding this, you can reach out to them for further communications."
After 4 away games in a row I miss hearing radio bias! Not sure if there'd be any use in the club feeding back to iFollow that they are happy for the commentary to be used on the video?