Oh, I'm not at all saying I use default Emacs, I'm just saying that I'm concerned that Evil would change it so drastically that I would forget how to use default Emacs. Default in this case meaning "not evil".
In those rare situations where I need to edit a file on a machine that doesn't have Emacs+Evil, I just use vim or vi... which even when unconfigured are good enough to make small edits without much pain.
So I get the best of both worlds: Emacs+Evil 99% of the time, and vim/vi 1% of the time when Emacs+Evil is not available.