Consider that if WoD was 'tbc 2.0' and if Legion was basically WotLK with demons, it makes sense that BfA is a half ass version of Cata.
They are even doing the whole city destroying thing, except with useless side cities instead of the main cities this time (SW, Org).
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The problem is rewards -aren't- compelling. They can talk so mad shit about players feeling rewarded, but with a world that scales to your ilvl? There is no reward. Progression falls flat on its face because suddenly the rest of the world is progressing to your level despite getting "exponential upgrades."
And this problem goes further. Endlessly scaling mythic dungeons, 4 different raid difficulties. The idea that endless exponential upgrades in conjuction with endless (or near endless in the case of raids) difficulty scaling is rewarding is absolutely bullshit. Just a psychological trick to keep players on the gear treadmill instead of actually releasing story or gameplay content that is worth a flying fuck.