call me old fashioned [because I am] but I have spent a lot of time in the past uploading stuff [but not websites] to servers, and I like FTP because you can [if you wish] watch what it is doing whilst it is doing it and hopefully see where it went wrong

pressing a button and expecting it to work 'just like that' still seems to me like a leap of faith.. but things are more robust now than back in the day, or at least should be