Feedback Unitys Component Based NavMeshSystem need a lot of improvements asap!

For the last couple of days I have been working with experimental component based navmeshsystem exclusivly and there seems to be a lot of functionality missing and you need to use stupid workarounds to get stuff working. Just the basic pathfinding in combination with navmeshmodifiers doesent always work as expected.

Imho a gameengine as big as unity needs to have a navigation system inplace that works and is robust.
I know its an experimental package but why is it still in this state? It should be on their prio list to get this out and working asap.

Sry for the rant but working with this package for days now has really been a frustrating experince for me.