This is drying up a bit so here's some more kindle
More potential Wrong Speech herein...(not really)
I agree with Anagarika to a certain extent. I only see inferential correlates between the 'original' teaches around Anapanasati and the Four Foundations for example and those as taught in Zen. There is a foundation common to all schools of Buddhism but then some seem to go Whooooosh launching off into another stratosphere!
I don't see Dogens take on the Dharma anywhere else in any other tradition, I mean not even a hint. The only possible parallel I can see is in something like Nichiren. So far as I know their's is a practice that sits some way off traditional Buddhism as taught in other schools. Its certainly not mainstream and would not be taught academically with an aim for students understanding of Buddhist Practice and beliefs per se - is that fair. Equally re Dogen, where did the Buddha suggest that we should have no aspirations for Nibbana...no agenda when sitting and that merely the act of sitting was sufficient. Dogen might well have offered a perfectly legitimate practice that has benefits for those who immerse themselves in it....just like Nichiren chanting.
But is it what the Buddha taught? I don't think so.