I assure you; they are.
Despite the very vocal people around the HN community to talk a lot about hating the selection, the data says that most people are pretty happy with it--and only getting happier.
I tried to watch a film last night and searched for all of these very popular films.
* Lock, Stock & Two Smoking Barrels
* 28 Days Later
* Go
* Gladiator
* American Beauty
* Speed
Then I gave up. When you try 6 very well known films and none of them are on there it changes how you think of the service from "most stuff is on there" (like Spotify for example) to "I have to search Netflix to find something I like" (like a normal TV channel). It's very different.
You don't like the selection. You're looking for films. Films make up a very small percentage of Netflix streaming content and Netflix streaming usage.
If you are still thinking of Netflix (the streaming service) as "most stuff is on there" then I'm happy to see you reframe your thinking--it's not now, nor has it ever been, that.
My girlfriend already jokes that if you search for a film on Netflix they realise and immediately remove it. Then you get the dreaded "Films related to X" search result.
It's really really bad if Netflix gets a reputation for having a small catalogue, even if most of it is rarely watched.
It's kind of like Linux vs Windows. Linux has 90% of the apps you need. But when you need Solidworks or Altium or GTA 5 or whatever you think "pff screw this I will use windows". With Netflix it has lots of stuff but when you search for Die Hard or 12 Angry Men or whatever... well let's just say I treat Netflix as a moral way of paying for Bittorrent.