OK, we do not speak about same users : you speak about population and I about emcomm teams. For sure, emcomm teams have to listen to population (I think about PMR446, LPD433, CB27, E channel...) in voice mode, but they need to build internal radio infrastructure to share information. Ribbit could be a brick of this solution :

• easy to deploy
• without specific hardware (compatible with what every amateur radio already has)
• high density of information transmitted by spectrum used
• logging messages
• geolocation of messages
• no internet connection needed

Actually, EmComm, in many situations, is based on licenced software such as VARA running only on Windows with a bought key. I think it's time to try open source software.

SOTA/POTA is generally short and sweet QSOs

Completely agree! SOTA/POTA are the best chat: short but very polite.