Add to that the fact that for many, TV, whether streaming or otherwise, is essentially background and they'll immediately cancel your service if all they have is a relative handful of prestige must-see TV.
Try different things. Don't be afraid to experiment. Don't be afraid to fail. Do things nobody's ever done before. Create new trends. Hire professionals so that every scene gives the users some level of satisfaction in terms of plot and aesthetics. For example, in a good comedy, each scene (if not each line) should at least bring the corners of your mouth slightly up.
Instead, Netflix is doing the opposite: recycle, recycle, recycle. This is maybe fine for some genres like romantic comedies for Netflix-and-chill, you kind of expect everything but it doesn't bother you. But for the rest, Netflix has become a symbol of mediocrity to the point that I explicitly choose only movies/shows without the N letter on them.
People like to throw this 'you can't cater to everyone's tastes' bit whenever talking about culture/film/game development. But everyone knows there is fast food and there is michelin. The latter requires a lot of hard work, and it is very hard to replicate at scale.