My understanding, based on some council-provided information (not from my own council, which hasn't said anything to my knowledge) is that national will send emails to the scouts' parents 60, 30, 15, 7, and 1 day(s) before they are changed, and that each of those emails will contain an option to manually renew or opt-out. The auto-renew only occurs if they do not respond. I am not saying that I agree with this approach, but it also doesn't sound like it is without notice either.
On the other hand, if the unit opts-out of this new process, the unit is charged for the renewal on the anniver