It's possible that fidelity to a traditional style can include much of that "everything else." They are not mutually exclusive.
It's possible, but there has to be a path for folks to use the techniques. As I’ve said, in traditional teaching models, if there is conflict between fidelity and anything else, a traditional style will default to fidelity. In other words, doing it well may be important, but not as important as doing it the way your instructor says to do it.
Each generation of instructors in a lineage is like a link in a chain. A weak link can be detrimental to that style's succeeding generations. Even though a student down the line may have great ability and skill, he will be missing some things prior to the broken link. The transmission to him will be incomplete. If he is studious and dedicated to his art, he may have success in mending the chain to some degree.
Experience is what fills the gaps between knowing a technique and being able to use it. That’s why instructors who lacks real experience may not be as capable as they believe—and why they can’t substitute for the experience you need to develop your own skill.
A quick story to illustrate the point. If you’ve ever watched home‑improvement shows—
This Old House with Bob Vila, for example—you know how simple they make everything look. A few decades ago, after watching one of those shows, I thought, “Tiling a backsplash looks easy. I'm going to take the plunge.” I did more research, bought what tools I could afford, bought (and read) a couple of books on tiling. And I did get it done… but only after running into problem after problem I never saw coming. The end result looked... fine, but it was a slog.
Since then, I’ve tiled multiple bathrooms, kitchens, and floors. I’m pretty good at it now—my work looks clean, and I know it’s done correctly. But even with all that experience, I’m still slower than a professional, and I’m sure there are tricks of the trade I haven’t learned.
Traditional martial artists are like me before that first project: they’ve learned techniques in a controlled environment but haven’t had to solve unpredictable, real‑world problems. The difference is that I could live with a mediocre backsplash for a few years. In a fight, the cost of overconfidence is much higher.
And it's a real dilemma. How does someone gain meaningful experience in a martial art when they rarely, if ever, get the chance to apply those skills under real pressure? Perhaps more importantly, how does this person ever teach someone else? Which leads to the next point.
I luckily grew up in the time when the senior instructors of various styles, if not friends, at least knew each other and there was incentive to maintain quality to uphold their reputation with their peers. My lineage has few links and each of those were strongly connected to our founding soke.
Back in high school, my friends and I used to dress up and perform
The Rocky Horror Picture Show every Saturday at midnight at the Neptune Theater in Seattle. We all had our own VHS copies of the movie—copies of copies of copies—each one dubbed ten or twelve times. And every time someone made a new tape, the quality got a little worse. The picture fuzzed out, the audio warped, and the details blurred.
Traditional martial arts can develop in a similar way. Techniques get passed down from teacher to student in successive generations, and without grounding in real experience (both instructor and student), the details can drift—not out of neglect, but simply through the natural process of transmission.
When someone in the lineage brings in fresh, practical experience, it can be like going back to a cleaner source. It also, inevitably, creates a lot of tension within the traditional organization and often will result in a schism of some sort.
While these criteria may have evolved over time as far as functional testing, there has been a trend for the past few decades to return to the historical ways (as sources of information have become available) to "rediscover" the functional art as it was pre-WWII and how it can be relevant in modern times. That DNA resides in the tradition waiting to be found.
I'd love to hear more about how they're functionally testing the styles now. That sounds interesting. I will admit that I'm skeptical, but genuinely curious.