I recently had a Feeder fail after a power outage. After 12 hours I received an email telling me the feeder was offline. When I looked into the situation, I found the UAT receiver had not been reporting for more than a month while the ADBS receiver continued to report till the power outage. It would have been nice to get notice earlier. Reburning the SD card fixed everything.
Then you would also need a seperate alert if e.g. MLAT is not working.