I have no issue with using the terminal myself, but you're expecting other people to use something that's foreign and unneeded when it's not even safe to do so. Copying scripts from the internet is dangerous, and even a minor typo when you know what you're doing can bring your system down. -Which happens even to senior system admins at times.

Some people don't want to run Linux for the same reason they don't want a job where a slightly off measurement in a chemical factory can destroy a town.