It's really not that RSS couldn't handle (/be extended to handle) this use case, it's that the parties publishing this information do not want you to have that much control over the feed.
See how much effort Netflix puts into making their catalog hard to browse, to obfuscate the actual size of the catalog and promote specific things they need to show a large return on, or all the sponsorships/ad-deals/promotions that inevitably begin to clutter almost any commercial news feed.
We have the technology, but publishers will fight tooth and nail to keep control over the platform away from the end user.
See how much effort Netflix puts into making their catalog hard to browse, to obfuscate the actual size of the catalog and promote specific things they need to show a large return on, or all the sponsorships/ad-deals/promotions that inevitably begin to clutter almost any commercial news feed.
We have the technology, but publishers will fight tooth and nail to keep control over the platform away from the end user.