I am sure we all agreed that this has been a very bad experience and has not been handled in the way everybody might have liked or thought best but essentially the Webroot platform was no longer a supported option ad embc had no choice but to migrate. With hiondsight it might have been better to begin with a clean implementation but for the best of reasons it was decided to try and migrate rules, ironically to try and minimise disruption.
Schools are being added gradually to try and prevent other issues. Try getting your LAs support in being added to the early adopters.