The main concern with setting the map editor as a priority is the work that needs done is like a month's amount. That means things such as a mac build and the remaining gui need to wait another month. Which means that people who can only play by mac, can't even play the game at all for another month, and people who quit early because they can't figure out the command line system have to wait another month. The map editor is fully functional at the moment and the creation of maps is not something I see is dire to keep players (vs something like gui or getting rid of the launcher) especially considering that I myself have the patience to build any maps that would be required to sustain players at this moment. Also normally when someone submits a map I need to spend a couple of hours polishing it for general public use which means by finishing the map editor out of order I am actually creating more work for myself.
Here is version 2 of the change teams menu -
This concludes all the basic widgets that we need, more advanced ones will need to be created for some special menus I want to make and the second version of the map editor which will use entirely these menu gui's.