But, for example, Meraki products are used to create LAN's that have an OOB control plane. Correct? That sounds a lot like "supernodes", where Cisco runs the supernodes. Is that "traditional networking"?

I'm not clear on the exact definition of "mesh networking", but I think it implies forwarding data traffic. If so, that disqualifies Meraki. But I'm not sure of the purpose of your point (with which I agree) because I never used the terms "mesh networking" or "mesh technology".

For the record, I used the words "portable" and "no telco needed". In my mind, this encompasses more than just "mesh networks".