Why do you keep bringing up books describing theory as if it is proof of what people are actually practicing now? This is a great example, because Thích Nhất Hạnh is expressly against jhāna, and he believes the Buddha rejected jhāna and never taught it! That rather proves my point that someone merely writing theory in a book is not necessarily at all connected to what they teach people to do. If you are in doubt about this, please find me any scrap of evidence of Thích Nhất Hạnh actually guiding people in jhāna practice.
I am really struggling to understand why you keep on producing things which give absolutely zero evidence of jhāna practice, as support for your claim that there is Mahāyāna jhāna practice going on. I cannot see any logic in your approach at all. Why is it that you keep seeming to think in this way? And what about the stoning in the bible did you not understand as not being proof that Christians stone people now? Sorry if I sound rude, I am not meaning to, but I am really struggling here. It seems so extremely simple.