Vim is a fantastic editor---no argument there!
But you can always revert a configuration choice you made without restarting Emacs. Either use the built in configuration interface, or evaluate a form with the change. For example, if you set something to t you can reset it to nil and just C-x-e that form.
But aside from that Emacs, like most programs, has a UX philosophy that I can't stand. And while Emacs lets me change that I don't want to manually redefine things for every single filetype and mode I'm using. Vim just does it right unless I make the mistake of writing JS in HTML files.