I think you're still missing OP's point. Sure, using ftp/sftp or scp is pretty easy for a software engineer, or technology enthusiast. However, that doesn't mean a content creator is happy to learn it, since as OP said, they care about the content not the actual tech. If they have a choice between using something that requires scp and writing HTML versus a graphic environment that is WYSIWYG, then the choice will very likely be the latter.