If they were due to expire, all together, that would be odd, but not necessarily an issue. The article points to them not advertising the expiration, like they do for other films. Surely the filmmakers can comment on that if its odd.

It would be quite disappointing from Netflix to do so after they were ambivalent about other controversial topics like comedy specials with bigoted views that were offensive to many. They claimed to make no judgement on content but make it available for people to decide.