No. They could add pyro separators and moving knives (as the Apollo LAM used). They just need to be able to easily replace the "last few centimeters" of plumbin

No. They could add pyro separators and moving knives (as the Apollo LAM used). They just need to be able to easily replace the "last few centimeters" of plumbing/cables, but it does not have to be dynamic. Either way, this (IMHO) adds more complexity to the stage and(!) processing compared to what SpaceX does (where complexity is mostly added in software).