Not to mention that sometimes those old dinosaur skills come in handy when those dinosaur situations roll around again -as they always do.
My personal example isn't all that high-speed or sexy... but here goes.
When I did BOTC in Chilliwack, bears still shit in the woods. Part of the harbour setup routine was the proper excavation of a latrine, C1 A1, high-speed low-sparking. No blue rockets in those days!
Of course, later on we either got environmentally conscious (or somebody noticed that training areas were forests of foul ground spikes) and we got the universal use of the big blue masterbation boxes, and the digging of latrines fell off the training syllabus.
Well, sometime thereafter I was with a platoon of guys sent off to one of the wild corners of Wainwright, tasked to act as btn enemy force for a two-week long ex, and somebody forgot to order up our shitters. Cat sanitation with a platoon operating in an area for any length of time is not an option to be seriously considered, and there was some sort of problem getting shitters out to our area. So I conducted a class on the proper construction and use of a regulation CF latrine, the latrine was built, and the problem was solved.
Hey, I said it wasn't sexy....
Anyway, all these skills, be it a section attack, or the proper construction of a fortified fighting position, or even of digging and using a shit hole, these are all tools in your toolbox. Some tools you use every day; some tools only come out on special occasions. But the more tools you have, the better prepared you are for any random situation that might occur at any given time.
DG