I know this is an old comment, but -- for the record -- itch has since improved things so that even though the individual products in giant bundles don't all show up en masse in your account, if you go to product pages they'll show you what bundles you've bought it in. After you do this, if you then click on one of the bundle download pages for that product, I think it then only shows that one download link on the product page for you. (Though if you really want the other links, you can go and use the bundle pages to find your other download links too, or you can also open multiple download links in tabs to "register" them all to your account, and thereafter the product page will show all your download links.)