That’s very much my thought pattern, I’ve wanted to roll out a LoRa reticulum network to my 4x4 Repsonse group in part of as suplimentary coverage to 4g when we have severe weather events. Was going to put it on a commercial band for exactly that reason (we already have licenses for encrypted voice data so should be easy).
Interestingly though, I can’t find anything at all about if encryption is allowed on the “business lite” frequencies I have my own license for. Infact it doesn’t state at all what traffic is allowed on it, just the frequencies and channel widths.