I know am gonna get burned by Blizzard fanboys but yes the content in Legion isn't a lot and not what promised.
Its just ITERATED content.
So they just build an algorythm and they are having less dungeons, raid bosses than ever before, they just have different difficulties.
The issue with that is that people get burned through that content, lets see how long people will like to repeat mythic+ for.
Also 7.1 so far has not a lot of things in it, I am waiting for that 3 boss raid filler and then the main raid. Karazhan was a very good example of what content looks like and was actually iterated content but very well done and enjoyable.
I just get annoyed by people saying that Legion has so much content. IT DOESN'T. It just has more repeats than any previous versions of the game.
Edit: To all the people triggered am not saying that Legion is bad, its prolly much better than the past 3 expansions, I am just saying that content wise wise it doesnt have more than other xpacs or much more than "wod", it just iterates smartly through its content.