These criticisms are leveled primarily at the AndroidTV Netflix client. I haven't used other clients so I can't speak for their functionality.
Currently, it is 8pm in New Zealand (Fri Jan 31 20:20:41 NZDT 2020)
"The Good Place" Season 4, Episode 13 says "Available January 31".
But its not available yet. At all. Maybe the fact that its currently 11pm in PST bears some significance.