I mostly use Crunchyroll and Hulu, however I do have a Netflix account. Netflix doesn't have a ton of shows, and for several of the ones that they do have these other streaming services also have acquired. With anything that a streaming company would release, it's all about the money. If there's thousands of people watching outdated episodes of AOT and SAO frequently, then the company will try to dip its toes in and see what it can do. It feels like so far, the "originals" that they've had haven't had much overlap in terms of genre, so it definitely feels like they're just testing the waters to see what sticks. Although, the series I've seen haven't exactly been terrible.
That being said, I have logged onto Netflix a few times just to binge a series or two - Aggretsuko, B the Beginning, Back Street Girls, Baki, Children of the Whales, Devilman Crybaby, Fate, Kakegurui, Knights of Sidonia, LWA, SDS, and of course Violet Evergarden. However, it's not a service that I check frequently like hulu or crunchyroll, because although I do prefer to binge anime more often than not they don't offer episodes as they come out which at times can be frustrating. It is also kind of irritating that they don't have as much to offer in terms of pre-early 00's anime unlike their two main competitors.
Anime as a whole however is rising quite rapidly these past several years compared to those prior due to an influx of influential celebrity social media accounts making mentions about shows. The anime fandom is finally fighting back against the various stigma and labels that have been placed on its audience and is breaking through into the mainstream. Which of course allows for companies like Netflix to begin to make an attempt at pandering to its more niche audience in the same way that a big corporation might between the months of May and June.
I think the real tests will begin when streaming services start to offer lower priced anime exclusive memberships to try and steal away users who prioritize crunchyroll and pirating for both cost and ease of use. If Hulu were to begin creating its own "original anime" as well though, then I do believe that it would be much closer to being considered as a substitute for crunchyroll or pirating than Netflix is currently.