That’s quite interesting. I thought clinging to views was overcome at stream-entry, so a non-returner (the first stage to abandon sensuality completely) would not have clinging to views. I’d love to give a look at that sutta. Do you record any other information about it?
I think there is also the problem is that Ven. Thanissaro defends nibbana as a consciousness that isn’t conditioned and is actually outside the aggregate of consciousness. Ven. Sujato and Ven. Sunyo have written some good texts about that:
I think Ven. Sunyo talked about that in that thread too.