I think that Garmin has a lot of nerve to discontinue a working feature with no recourse. I am talking using MTP protocol for Macs. This means that Mac cannot see the newer Edge devices as mass storage. Customer service suggestions (Use a smartphone or Windows Computer) is not relevant IMHO. How does Garmin know that I would have bought yet another of their Edge computer had I known they discontinued this feature?
I am all for adding features but don't arbitrarily discontinue working features.