The major networks don't make many big hot shows anymore.. It's a vast sea of low cost reality TV crap with a few good shows in the mix..
HBO, Showtime and Netflix have stepped in to fill a void the major networks left plus they control the copyrights, content and distribution..
HBO and showtime learned years ago that producing edgy shows that go beyond what the FCC allows for broadcast TV pulls in and keeps subscribers.
Netflix is just following that successful model.
Lets face it.. Orange is the new black wouldn't be half of what it is edited for broadcast TV.
The new twist netflix offers is binge watching a whole season at one time.