Unpopular counterpoint-
Netflix understands something that we don't like to acknowledge. A lot of people just stop watching shows.
For every show that builds audiences, the majority of them lose them over time. And shows get more expensive (because you have to pay the cast more over time).
This cold and calculated decision means that we are probably losing a lot of good shows- for example, there wouldn't be a Breaking Bad on Netflix. But in terms of number and volume, they are probably right. New shows create buzz. If something is a hit, and continues to be a hit (Stranger Things), it will keep going. If it starts to lag, it gets the axe. And they will try to create the new hotness.
Which sucks.