If you visit that page as a subscriber, it doesn't say they don't have it. It just has the metadata and a "Remind me" button. If you visit in incognito, you get a 'not found' error. Maybe they have it for another locale. Maybe they used to have it. Maybe they will have it in the future. But you're left to guess.
One day, it just...disappeared. One of Netflix's own shows (we were, by that time, watching the episodes they had produced).
Every source I could find said that Netflix carried it. But when I searched for it on Netflix, I couldn't find it.
A few months later, it reappeared, as mysteriously as it had vanished. Of course, by that time I'd simply downloaded the remainder of the series and we'd watched it through Plex.
I live in America.
I've recently been watching through the Terminator movies with my son. Netflix had the first film, and then has Genisys. Prime has Terminator 2. Disney Plus has Dark Fate. Terminator 3 and Salvation are on Binge (which we'd just cancelled) and Stan.