Oni: An IDE powered by Neovim
Are you expecting another Visual Studio or IntelliJ?I think Electron is a very cost efficient dev environment. Can't really think of writing all this up in plain C++, wiring up native calls for various OSes, leveraging GPU, support rapid plugin dev/prototyping etc., etc. 
Once upon a time there was Qt, but now it's also doing qml+js..Even if a NeoVim version of Eclipse (or whatever you think a 'more native IDE' is) is rolled up, by a small team comparable to oni's, are you going to _pay_ for it?Oni: 17 contributors, one main dev.
IntelliJ: 249 contributors, Github fails to load stats in one minute.So why not stop complaining about the IDE and put efforts into optimizing electron-like platforms? There's still a fat headroom for improvements! (WebAssembly etc.)