These content agreements would have end dates when they are negotiated so they should be required to disclose those at the time you "purchase your license".

If they renegotiate and extend the arrangement then update the UI with the new date.

Sony couldn't seriously believe they were going to be able to renew these licenses forever given how many streaming services are out there who need to fill their catalogues.

Instead it's better for sales to show a "buy" button with no date[1] so customers don't back out when they realise they'll be spending close to the retail purchase price to only rent it for a few years.

[1]: https://www.youtube.com/watch?v=qvJSpB9cb6Y