That would make sense if users were archiving your site for your benefit, but they're probably not. If I were to archive your site, it's because I want my own bookmarks/backups/etc to be more reliable than just a link, not because I'm looking out to preserve your website. Otherwise, I'm just gambling that you won't one day change your content, design, etc on a whim.
Hence I'm in a similar boat as the blog author. If there's a webpage I really like, I download and archive it myself. If it's not worth going through that process, I use the wayback machine. If it's not worth that, then I just keep a bookmark.