Media is not like software.

Software can be kept going with some maintenance investment. If you built it, you can keep it running for as long as you like.

A movie or tv show, on the other hand, is a complex web of rights and contracts. The initial launch aligns everyone’s interests, but releasing it in new countries or on new media types requires business and legal discussion. If it’s worth it, it’ll happen.

Each one of those agreements is also time-limited, and so if you do nothing you can still end up with a title that is too much trouble to keep around.

(All the above is speculative wrt these titles in particular. But go look at Moonlighting as a tv show that was blocked for many years due to this)