P2MP vs DigiMesh

Trying to make a choice between DigiMesh ( XBP9B-DMST-002 ) and Point2MultiPoint ( XBP9B-DPST-001 ).

I will be sending commands from an Arduino Mega 2560 (controller) to RasPi 3B+ (robot). Only the 2 nodes.

Which option would be better for such application?

Or, is the better question, when would P2MP (non-redundant) be superior/chosen over DigiMesh (redundancy)?