I just realized that with this flower thing they discovered, at the end of the episode they can pretty much combine any two people and then separate them at will, with no danger. Starfleet can take their top specialists and combine them. Plus Maybe some freaky couples would sign up for it.
I believe that she faced, essentially, the same basic decision faced by any person who has ever had to make a decision regarding the usage and/or removal of life support, and see absolutely no controversy in that kind of decision.
Who makes that decision when the person on life support is saying they want to live, though?