could you send out a seperate email link that activates everything, even going through all the download buttons doesen't work because some games only have a "play in browser" button or worse neither a "download" or a "play in browser" (vaporware situation) which is a problem because there is no way to get those games tagged as owned in case later they release a download.
ex. https://asatiir.itch.io/roses-will-rise
https://adamebell.itch.io/reliance-revolution-and-contradiction
https://marionettecz.itch.io/space-escape-obstacles
https://leartoler.itch.io/migracciones
and on the "play in browser" ones i know some of you may be thinking "well just play in browser then", but keep in mind they included themselves in the bundle and the PiB part could be done without buying the bundle, so having dibs on future download files being attached is a fair and reasonable position.