Drupal contribution is a complex universe. Like all human group energy is. Especially when it comes to each sub group of peoples corners.

I lately humbeld over Nodehive and its Dashboard included in their content planner module which seems to be the third party company product version of what is worked on core in the Dashboard initia

It is rare. Very very rare. And mostly it is even the opposite. The community embraces contributors from other languages and there are core maintainers who can speak from their own experience.