You can still restore from a bare metal/image back without having to contact AC. The activation key only applies during the installation of Amazing Charts. So it will not affect you if you're restoring from an image-based backup.

It makes it a lot harder for providers like Indy, James, and I to spin up temporary boxes when a server crashes. Maybe giving us Certified IT Support or the docs the ability to automatically request an installation key from the portal would be better.

I had a practice the other week whose 8-year-old server crashed. I have no idea what the IT guy was thinking. They're are over 40 people working at this one office not including their branch location. They lose thousands for every hour of downtime. We had a host server and managed to get them up and running in a few hours by cloning their disks into a virtual machine. That thing should've been replaced at least 3 years ago. This was the best solution for this practice anyways. Giving 40 people a new environment would've been crazy. This was only possible because the practice was local. Transmitting a terabyte over the Internet doesn't work that well...

With the distant practices, it's much easier for us to just download their AC file backup and restore it to a new environment for rapid restore.