Unfortunately I think they're right on #1. In the grand scheme of things the lost sales because of this change are a drop in the bucket. HA and similar tools are not that popular, very few people who have their mind set on buying a VW will change their minds because of this alone.

What's worse is that other manufacturers are starting to do the same thing. They all see unofficial integrations as lost revenue (less of your data to sell because you don't use their app), and higher costs because the usage still comes on their cloud spend bill.

I was talking to my gadget-passionate (but not techie) best friend when the company making our cars made it more difficult to authenticate using the HA integration. He looked at me like I switched to an alien language. "Who cares? Don't you use the app?".