Well, currently, you cannot install the OTA update on PACEfied anyway. So, if you run on PACEfied, you are not at any risk. The problem would have been with temporary installs, as they were able to install official OTAs.
Speaking of OTA, it seems that modding the OTA updater package by replacing the OTA links to huami servers with some server of our own wouldn't be difficult. I'd be glad to develop and provide the hosting for a backend application that mimics OTA huami servers for implementing OTA update of PACEfied ROMs. What do you think @Neuer_User?