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It doesn't matter one iota if someone claims it as their own, what matters is the benefit it brings. Do you think Patanjali (or whomever) would be protective of their techniques and trademark it, patent it, and extract wealth for it? If they don't care then neither should anyone else, and perhaps this will help the techniques spread further, which I'm sure Patanjali et al again, would not be against.
If Jeff Bezos says he has invented a new operating system and upon a little digging it is discovered that he just tweaked and renamed Linux, then he should and will be called out, and it will hurt his reputation.
The problem is not with using knowledge to your benefit, that is why it is there. The problem is with plagiarism, misrepresentation and intellectual dishonesty.