I think the fallacy in the "Myths ..." article is that it presupposes how Americans perceive future wars to be fought as "traditional warfare". "Traditional Warfare" in and of itself is a loaded term to mean whatever one wants it to mean - most presume it means something like 1970s and 1980s Cold War or AirLand Battle. What we're really talking about is military doctrine.
If I have my timings right, this article came out just before TRADOC foundation publications on Multi-Domain Operations albeit the notion had floated around before that. The word "domain" only comes up once in the article and not in an overarching way. So my guess is it doesn't really address the expression of the change in doctrine from AirLand Battle to Multi-Domain (or Pan Domain as we call it here in Canada).
Rather than focus on "traditional war" I tend to think in terms of "Big or Little War". For me "Little War" is the discretionary one where we have a choice as to whether we wish to engage or not and a choice in how deeply we will commit to it and where failure does not create a crisis for the country regardless of how much of a crisis it may be for a particular political party. Afghanistan was a typical "little war". A "Big War" for me is one where we have no choice but to participate, where we may very well have to go "all in" to succeed and where failure will have severe consequences for our nation and/or lifestyle. The current war we are in with Russia and with China is a "Big War". Our doctrine for that and the tools to effect it are still under development - slower in some Western countries than others but under development nonetheless.
I think where SeaKingTaco is bang on is that for those of us who were part of the Cold War, we have a more far ranging view of what a future war looks or could look like because we've seen and worked within the "Big War" scenario. When you have that picture as part of your experience set then its easier to slot other concepts such as COIN and Pan Domain operations and various other ones into their place than if your experience set is simply based on the "Little War" scenario. Personally, I think that there will be another need for a "heavy fight". It may not be like the Cold War ones we planned for - in fact I'm positive it won't be - but it will, at its extreme end, require large quantities of full spectrum equipment and combat techniques. Let's face it, while everyone is developing the new methods of warfare they continue to produce and field heavy armoured forces with extensive conventional capabilities.