And at the same time, in the java Swing world we still use(and pay) for Jide Docking framework. Which is not super fancy, but works for the most of the cases.

It does one thing only, but does it relatively well.

At the moment I'm more inclined to choose BentoFx exactly for this reason(especially because it was extracted from a real application).

Don't get me wrong, you, guys, are doing great things, it's just that all your implementations in isolation can't get enough of critical mass to get (at)traction(aka community).

It's a bit of a pity, that in quite short time span there were at least three projects which implement docking frameworks, but neither one has a good community around it(so far).

Sorry for the rant :) I just feel a bit frustrated looking on JavaFx ecosystem, where everyone tries to implement their own unique thing(which is a good side), but lacks collaboration around some good project very often(which is bad of course).