Yes, that is also part of my design.  An entry-level user can connect to a single PoP and get "their subnet" routed to them, and route all other Net44 space towards that PoP.  Simple, static routing.
A more advanced user can make multiple PoP connections and use BGP to send and receive individual subnet routes, and let their local router decide to which of the PoPs to send each packet.  That would also cover the case where a PoP is down and all traffic is routed via the remaining one(s).
These users can also have cross-connections to other users (via radio or direct tunnels) and the routing remains correct.