Are you referring to the "Note for OS X users" section in the README? If so, it's only additional step, so 4 in total... I know macOS users might not be the most technical, but I think most of them (at least developers on macOS) should be able to follow it :)
btw my comment was not here to tell people I was lazy. It was here as feedback. Users are lazy. Online businesses track and look to decrease the number of clicks that lead to a sale, there's no reason developer tools shouldn't try to do the same :)
(I know it's free, not complaining)
zinit light-mode for \
zinit-zsh/z-a-as-monitor \
zinit-zsh/z-a-patch-dl \
reegnz/jq-zsh-plugin \
larkery/zsh-histdb