I feel that the content was there for WoD (albeit less than MoP), but something just wasn't right. The content just was not compelling as a whole. Breaking down the raw launch content, we have:
8 Dungeons (Normal, Heroic, Challenge)
17 Raid Bosses (LFR, Normal, Heroic, Mythic)
3 World Bosses
6 PvE Zones
Garrisons
Apexis Dailies
Treasures
5 Reputations (+ Bodyguards)
Professions
Pet Battles
1 World PvP Zone
I feel that there is a decent volume of content there. But why did I not feel compelled to do it? Looking back, I think these might have contributed:
1. Flight - for me personally, I think Draenor was just more enjoyable with flight. And it's not even about making the content trivial. I don't mind completing some content before flying, but I think waiting a year for flying is a big mistake. I don't want a 40 page thread on flight so I'll leave it at that.
2. Rewards - overall the rewards were very unrewarding and underwhelming for almost all non-raid content. There were far too many reskinned rewards, which I think would have been more tolerable had the base versions not been so ugly (boars, riverbeasts, etc.). The power rewards were terrible (650 world bosses, 655 apexis after months of farming, LFR, etc.).
3. Underutilised World - the continent was far too tame for a "savage world". Too much of the land was empty leaving me confused and breaking my immersion. How could such a savage land be so dull and lifeless?
4. 'Rushed' expansion - I know people don't like this term, but despite 14 months of SoO, it was very evident that some areas of the game simply did not have enough development time invested (professions, character models, daily quests, Gorgrond, mount rewards, Garrison Buildings, Ashran). And the lack of post-launch support only compounded the problem.
5. Story/Lore - there was very little interaction with the biggest threats of Draenor (the Warlords). Reputations were very left wing and mindless grind fests with no purpose. As a result, people just did not care about the reputations, especially with the lackluster rewards on offer. The Tanaan storyline was very left-wing and left many people perplexed (Grom final boss?), and thus found it hard to engage with the 6.2 content.
In summary, WoD had less content than MoP but still a respectable amount of content just by looking at the sheer volume alone. But for some reason, I did not feel compelled to do the content and it was not engaging. I've attempted to discuss why I felt that this was the case above. It feels like they put only 50% effort into the non-raid content and was all about ticking the boxes rather than the passionate and engaging content that we've seen in the past.