I was starting to contemplate this solution too. I bought an iPhone SE last July, got my Civic EX-T earlier this month, and my iPhone has never been so incapacitated. I was wondering if the purchase of a new 7 would take care of the iOS-to-Hands Free Link (because not only does CarPlay not work...
I have had the same issue with Spotify! So frustrating -- the app crashes, the iPhone freezes. It's as though my iPhone and my new Civic don't know how to get along yet...