It's not "designed to be as unfriendly as possible", it's designed to be exactly what you configure it to be, that's why I love it. Every keymap, every screen position, every worflow, the way it searches through lines and files names, everything was configured by me, so whenever I do something in my editor it always make absolute sense for me, because it was literally made for me.

If you get me to someone else's neovim config I would probably be absolutely lost because it's a very unique experience for each person, some people like to bloat it out with plugins others like to keep it bare minimum and so on.

One biggest lie abput vim is the productivity, it doesn't make you that much faster in comparison to any other editor if you take the time to learn the keymaps from them, the real strong point of neovim is having an editor that is absolutely tailor made for you in a way you cannot achieve in OOB editors.