I agree with your point but fwiw when I worked a full time C job doing things with servers running a custom Linux kernel the biggest conveniences were Shift+k over a keyword to open the man page (most of my time was reading docs too!), having some custom scripts that read ctags and could tab-complete keywords from our large codebase and open the files at the right line, and having the same editor on our embedded servers and VMs as on dev machines (and even now that's half of why vim is still my primary).

There were people at the company who were more efficient than me using Sublime + mouse, but I was less efficient using Sublime.

(but really the biggest reason I use vim as a slow and sloppy typer and not a computer person is, hotkeys make my hands hurt, I've managed to avoid any RSI or pains like this, and I like vim better than vim keybindings in other editors.)

other productivity gains not related to typing were the search/replace in vim, embedded terminal, and being in and staying in a terminal made it easier and quicker to switch to scripty things, searching or reformatting files etc