[A Map Editor after or around release]

I don't think it's overlooked, and if a dev were to come here there answer would be simple: not enough time or resources. Personally, I'd prefer they spent their time improving the core gameplay instead of making a toolset so people could make a whole lot of amateurish mods. Lots more content, but not very good quality, in my opinion..

Developing a fully bug free integrated map editor? Sure that would take time and resources but I mean just releasing the tools that the devs are ALREADY using to make the game, in all seriousness they kind of have to have something to make them game themselves, like file decompressors and simple map editors, the game just deosnt pop up from nowhere, releasing that would do a whole world of good with community made content-

[A Map Editor after or around release]

This is very important, and should not be an overlooked feature, it is also the main reason why KOTOR 1 didn