I've already told snailbrain that I'm available for adding additional RPC commands as necessary (for instance, way path calculation so you need not worry about implementing the exact same algorithm as in the daemon).
The name_update command would also accept waypoints calculated by a different algorithm. (I think. As long as you don't get stuck.)
You could even calculate a route to avoid stationary enemy players...
Yes, it does. However, movement inbetween the waypoints is governed by the exact algorithm implemented in the daemon; also, you need to find at least
some set of way points leading to your desired target without hitting any obstacles. While this is not exactly hard to do with some knowledge about path finding algorithms, it would possibly still be easier to offload it since the algorithm exists already in the daemon.