Doesn't seem like much thought was put into the list other than "hey that was a cool truck." Collectibility status depends on a combination of both coolness and rarity, and many of the trucks on that list were produced by the tens of thousands.
Better candidate might have been the Lincoln Blackwood Neimann Marcus Edition. Ford only produced a little over 3K before stopping the run, and of those, only 50 NMEs were produced for sale through their catalog. Original truck cost was well over 50K; you can pick a normal Blackwood up for 15-25K, but NMEs command 20K over that.
Not that I'd want a truck that only came in 2WD, black, and with a non-removable tonneau cover...![]()