It just did not fit into what is called 'strategy' by Wikipedia:
Strategy is a high level plan to achieve one or more goals under conditions of uncertainty.
It also did not really fit into Sun Tzu 'Art of War' not Clausewitz (the father of modern war doctrine) 'On War'.
My observation is that mapping is an artificial tool that allows you to understand your environment and spot possible actions in a *very* industrious way. It has a lot of advantages as properly done forces you to look at every aspect of your organization in a very broad context.
Of course, it may be confused with strategy, but let's use analogy here:
Chess were supposed to be a game of strategists to the beginning of XX century. Then they get analyzed, and move patterns were described. It suddenly was not important how good you were, as a person trained in schemas could easily beat you.
This is exactly the case of maps. Adopting maps is a must, as it gives you a competitive advantage. If you do not do this, you will lose by smaller, weaker but better trained players.
Going back to chess - after move patterns become ubiquitous - chances were even again, and chess become a strategic game again, but the fight was on move schemas.
This is what will eventually happen with mapping - it will get ubiquitous, and only then it will matter how well you can use it and how well you predict your opponents moves. But right now - you are the weaker and smaller player with a secret knowledge - use it!