I've found that containment component doesn't support multiple point inputs. Are there any way to deal with? If it doesn't, David, I have some feature request to GH :P
MMMMmmm...cleaver solution. You use faces like target in your dataflow using Path Mapper instead points.
I have corrected my definition keepping the concept of using points in dataflow.
Thanks for discover my mistake.
P.D.: I must say "Ciao" too :)
P.D.2.: I have seen that your definition keeps faces that share the edge where some point is. Some tweak in domains and boolean gates and this could be solved.