Surely, knowledge and experience IS important -- more important than things. The experienced, knowledgeable person can do more with less. Bend a sapling over, and it can be gathered with a Mora -- OR any number of Bark River's, SR Bandicoot, Fallkniven F-1, SOG Field Knife, Hackman Puukko, or most large lock-blades --- and not a "Rambo" in the lot. Indeed, as Moine said, much can be done with the tools at the ends of our shoulders.
That leaves the great mass of humanity -- the very persons most likely to unintentionally get in a "survival" situation. Experience and learning teaches that those most needing to "survive" for that golden seventy-two hours will be relatively clueless PLUS some combination of frightened, young, old, sick, injured, dehydrated, freezing, or hungry. What of them? I respectfully submit that they are the LAST people to give a great, heavy chopping tool. The best people to be so equipped safely are the same knowledgeable, experienced folk who need them least (but may use them for shear enjoyment of an excellent tool). I helped carry out at least three lads who got into a "survival" fix by chopping themselves rather than wood.
While "any knife" is likely better than none -- and a Mora is far better for outdoor work than 99% of the knives sold in the mass markets, I suggest for consideration that the inexperienced should take into the wilderness: a high-quality 3-5" fixed blade knife -- preferably harder to break than the Mora that works so well for the veteran; a light saw; and a pocket knife of some kind.
Weight allowing, they should take the Mora, or one of its Scandinavian cousins, because they will probably use it. It works great for most camping/hiking/backpacking/hunting/fishing tasks.
I just like the idea of a margin for error --- and clumsiness -- if the stuff hits the fan.