We have visited and revisited this over the years and never officially supported any of the networks as it seemed to be too early. Do you agree? Here is an example This Is It For The Particle Mesh Network | Hackaday
While not ideal for some uses, WiFi still seem to be the strongest option. Which is what we have focused on for TinyCLR 2.0.
Battery operated devices all want low power networks. Zigbee seems to have been what industry is adopting in place of wifi. LoWAN / LoRa seem to be what is being adopted for long range sensors. I agree mesh for the endpoint sensors = bad idea. I think hub and spoke is best. Cellular hub with LoRa spokes.