Art is War! War is Art!
We all dissect to help to understand concept, practice, material, but unfortunately we seem to forget to put it back together again. My observation as a CNC programer included a very high understanding of practice working with materials and tools.... you absolutely have too! This is why we will probably never see engineers running CNC, exclusively.
Conceptual variations from what is manufacturingly possible is a problem that happens, not so much often, in manufacturing, but happens and if not caught can be a real problem.
I have seen men go from the stark raving look of terror on their face thinking about CNC, go to be actually it's biggest proponents after becoming familiar with the capabilities.
The fear or concern that tools such as planes, chisels.... going out of favor is misplaced, they have been around, literally, in some form, for thousands of years. It's way to easy to pick up a chisel and cut something quickly than to set up a CNC or plain mill for that matter. Synonymous thinking... the hammer will be obsolete! Won't happen. Is there some deep spiritual way to use a hammer... probably, but not life changing. If lost, it was lost for a reason.
My experience when one resorts to "spiritual" explainations for the mechanical we lose sight of what spirit is. The art of building guitars is also science/spirit/manufacturing because it requires spirit to do.
Spirit is often misunderstood as comfort in technique! A 2 years old probably would use more real spirit in building a guitar because he would have to, to get the job done, but has very little immediate ability to do as such.
These lamentations seem to come from those that are older, perhaps a reminiscing, to a time when life was misperceived now, as being easier... it... wasn't!
I believe, many times, one is seeing, instead of loss of craft, not to be too maudlin, the big "D", their own death.
Fogey think!
I don't see too many people in their 30's/40's looking back at how easy things were when they were 20 or teenagers. That's probably because their memory still functions

.
We put it back together... after the science experiment, it all works quite well!