Yeah, been that way for a while. I assume either this tweet is old as fuck, or they're adding more paid for ones. Or some regions don't have it that way yet.
The discoverability on D+ is awful as well. There's loads of older stuff and all it wants to show me is shitty "reality" TV I couldn't give a fuck about, and have never watched. I'm only on it now because the wife is halfway through Buffy and can't remember where to find it again if I torrented it and I can't be arsed with the aggro.