Netflix doesn't wait for people to get bored. It canceled Kaos the same month they released it! It had good reviews and a lot of binges but that didn't save it from the axe.

Dead Boy Detectives was canceled less than 5 months after it was released.

With so much competing for our time there's no way everyone is going to jump on every show immediately after it gets released and watch it several times over so whatever bullshit metrics netflix is using look impressive enough for them to give the show's fans a satisfying conclusion.

If you watched TV before netflix you might remember that sometimes it took two or more entire seasons before a show became popular. Some extremely popular and successful shows were like that and would never have happened if netflix had put them out.