I am skeptical though there is no doubt the underlying architecture is there that is developed based on type of activity performed.
If I run, those muscles, tendons, etc with corresponding fascia becomes more efficient with physical conditioning
Same with swimming and even taijiquan. One does not say that s/he is training fascia hence my skeptical and health attitude on this type of training.
Of course, one can train whatever he feels he needs to
When fascism comes to US America, It will be wrapped in the US flag and waving a cross. An astute patriot