Your talking a single application I'm talking complete systems
I can hit you with a palm strike form Sanda, I can hit you with a palm strike form Taiji or I can hit you with a palm strike from Xingyiquan. They are all palm strikes, they all work but they are not the same based on the traditions associated with the training of those styles.
Cyracius has a really good point. Forgive me, but I don't quite see what you are getting at by saying "they are not the same
based on the traditions associated" [my emphasis]? If those 3 palm strikes are indistinguishable from one another, and the only thing that differs is what tradition they are "based on", I think that only proves the point Cyracius made, and that tradition is not specifically relevant.
But I am guessing that you are not implying these strikes will be in fact identical? The question then is to ask how exactly they differ? How and why are the body mechanics different? Part of the answer will of course necessitate one say--well X system taught it that way, and Y system taught it the other way. That is a big No S*#t. But then you have to ask how did the "traditional approach" in one vs. the other shape the method? What are the positive and negative distinguishing characteristics? Objectively, what part of that development process do you consider "traditional", and how does that matter?
If the same palm strike result can be had by different training methods outside of the parameters of what you may consider traditional, and with less fluff, then all the better. Better yet, assuming all three palm strikes are in fact different, is one better? Or all they all different tools one can use? If the latter, using a "traditional" approach "based on" that one art could leave you trapped in that box, truly adhering to the "living faith of the dead" to your own detriment.
But you make the valid point it's not just about one isolated technique, but a whole system. I think it just instructive to use the palm strike as an example. So, because you say Taijiquan must be trained specifically by adhering to tradition, I think that's a good system to discuss. Because there are several families, styles, and countless variations on Taijiquan, it will be necessary to generalize a bit, but lets give it a go. Before I tell you why on general principle I completely disagree with you, and why I am certainly correct. Here are some questions for you that will clarify any further discussion:
1) What aspects of TJQ, and that training method do you consider fall under the definition of "traditional"?
2) What skills do you think can only be developed via this specific "traditional" method(s)?
3) Why do you think it necessary to use the traditional training method et al?
4) How do you think your TJQ traditional approach differs from other TJQ traditions, what is the impact of that difference?
I find that one mans tradition can sometimes be another mans deviation.
G