That's actually the point I'm making here.
The list is so specific that it's equivalent of Heroes of the Storm being listed in the top 5 played MOBAs of 2022. It'd be there because the entire listing is so specific that there isn't much to regard in terms of competition. It'd be like regarding HOTS as being successful for making the top 5 MOBAs of 2022 list. It's kind of arbitrary.
The categorization and metrics of the 'Top 15 Streaming Originals' is quite arbitrary. Even quite debatable considering its metrics are skewing towards streaming-only platforms, which is partially why it's so Netflix heavy. Also, it's been questioned what amounts to an 'Original' series when Wednesday, Cobra Kai and Rings of Power are all built off pre-existing properties, either as sequels or spinoffs.