Please point me toward the AAR you read, or provide examples as to what you are talking about.
Second part - You're right on the focus, but writing out overland CSAR as a capability and is a lesson we in Naval RW have learned many times before and the people making these decisions are inept due to their ignorance. What if Jack is 3 miles inland on an Island? "Sorry guys, I am not trained to overland". What if he is on the beach... "hell guys I have never done a brown out so can you have him swim out a few miles". Where do we draw the line? Well, what will happen is we will still go, but now with ill trained helicopter crews at a much higher risk.
The history of Navy RW CSAR is riddled with leaders and strategists making stupid assumptions about the future, giving up a capability, only to need that capability again after learning through the loss of good people. After the Korean War there was no investment into it and eventually Naval RW found themselves in Vietnam learning on the fly. Post Vietnam again we let the capability largely go away and we had Grenada, Lebanon, Libya. Many of those actions were covered with ill-trained crews and aircraft. Yes HS was around but in many cases not in position to cover those actions. And USAF ARS/RQS units were not always in place quick enough (or available) From there Desert Storm, Bosnia, OEF/OIF/OIR, etc.
It needs to be a clear that, HSC had no doctrinal place in OEF/OIF/OIR (with some limited exceptions). As much as we all wanted to be in the fight, it wasn't a Navy RW fight. Lots of GWOT baby's joined the wrong branch if that's what they wanted. To put in perspective:
Afghanistan coast: 0 mi
Iraqi coast: 36 mi
Iranian coast: 1750 mi
Russian coast: 23,400 mi
Chinese coast: 9,000 mi
Yes A2AD and the tyranny of distance will have massive affects on if we (or anybody) can make it overland in the opening days of peer MCO fight, but what about 30 days in, 60 days, 1 year. And before we start playing the game of "it will be over by then so we don't need to plan for it" I refer back to history with WW I, WW II, Vietnam, etc. Many of those same assumptions were made.
To all the fixed wing nerds, have fun knowing the Navy isn't coming to get you if you bail out over land. And before you say "but the Air Force" let me stop right there and let you know they aren't everywhere the Navy is and they will have their hands full. I would be irate if I was a Fighter Attack Guy.