...Jim Lapenta was stating that even a brand new open water diver right out of basic open water training should be able to support a diver at the surface, get control of a panicked diver at the surface, bring up an unconscious diver from depth, tow and unconscious diver while stripping gear to the boat/shore.
To me that seems like an awful lot of task loading for a complete newbie. To use another analogy, it's like teaching a skier to do a snow plow and then take them to the top of the mountain for trip down black diamond experts run.... I think divers get the most out of a CPR first responder course and Rescue Diver course after they have several dives under their belt. IMO I think they should be able to instinctively control their buoyancy and trim while diving before presented with rescue/emergency responsibilities.
It seems to me that diving instructional programs across the board have become "more user friendly" over time. A diver (in some cases) can be a non-swimmer and become certified. Often newly certified divers are not required to be independent in that they have no need to survey a dive site for hazards and often leave the safety of the dive to the Divemaster. It has also been a trend that diver rescue has been considered something left to the DM. It has become somehow "acceptable" to leave rescue to a more advanced class (should the diver optionally choose to continue with further training).
I believe that diver training has been dumbed down too much for my liking. It's true that technology has given us many safety advantages in the field of diving over the years, but as I'm from the "old school," I don't believe that technology is sufficient in-itself. From my experience, the underwater world is far from a predictable environment. Bad things happen and it's only through fitness and proper training that some of these potentially lethal incidents can result in a safe conclusion.
I don't believe that your "black diamond run" example is appropriate. I believe that giving a diver a certification card without rescue training (as Jim has described) is like giving someone a driver's license and them telling them that they can optionally come back for further training to cover red lights and stop signs. Although it's possible to dive without ever having to deal with such eventualities, I believe it's just a matter of time. In diving this can happen on a newly certified divers first dive... New divers should not dive solo. What do you think you are doing when you dive with a "Buddy" that doesn't have a clue of how to save you? I've been teaching for 41 years. Every diver I've certified has demonstrated rescuing an unconscious victim at depth.