I haven't seen Maruyama for almost thirty years - but what he was doing back then was really not much like what we're doing except for some very basic crossover.
I have no idea what you folks are doing, we've never met.
On the other hand, if you've never met Dan then you really don't know what he's doing either.
This stuff is different enough that most people who think that they're doing the same thing...aren't.
As I said, different exercises, different goals, many of the same results (if you're counting Ueshiba's push/pull test demonstrations as part of your result set).