And that zip file might be not the version you thought it was, if it's not from a build server it might include any number of uncommitted or gitignored changes,

And that zip file might be not the version you thought it was, if it's not from a build server it might include any number of uncommitted or gitignored changes, more transfer steps mean more things that can go wrong. These automations are not about reducing keypresses, they are about reducing the number of trivialities to mess up. People tend to have other things on their mind when going through that kind of routine.