The same question is even more relevant to emacs and vim. Why are they so unintuitive ?

Intuitiveness is honestly a relative problem. I've been using vi for a long time. What's intuitive to me? Moving my cursor with hjkl is intuitive to me. Using `C-w h` to move my cursor to NERDTree, then searching for my file with `/filename` and opening it with enter makes taking my hand off the keyboard to move my mouse to double-click on a file seem absolutely barbaric.