So that is indeed the main difference. I will summarize the opposing point of view.
In arguing that it is good to teach the skill of surfacing an unconscious/unresponsive diver at depth, you say it is important to do that because we don't do a good enough job teaching gas management or ESAs. Many people don't see a correlation between those very different skills.
You then point out that it would be good to be able to help a buddy who is having a heart attack get to the surface safely. Once again, that is not the same thing as surfacing an unconscious/unresponsive diver.
So let's talk about how important that skill is rather than how important other skills are. In the many threads about this topic in the past, physicians have pointed out that if you come across an unconscious/unresponsive diver, that diver is essentially dead. In those other threads, proponents have been challenged to provide an example of a single case in the history of diving in which a diver came across an unconscious/unresponsive diver, brought the diver to the surface using the approved technique, and had the diver live. There have been cases where divers who were observed in distress and passing out had people grab them and pull them to the surface, but that is, once again, not the same thing, and it is a skill that requires no instruction.