I agree with your initial point that Wuk isn't the problem, but the length of DT isn't the issue I think: It is involved however. The whole thing felt rushed, uninformed, and poorly written. You're right in that the bulk of the quests are missing, but they've largely been replaced by cutscenes. But that being said:

Quote Originally Posted by Themarvin View Post
I it is still only the same 75 people that clicks like or whatever, it does not really reflect the game and the player base.
You're right. You will see repeat faces in the forums as we're a minority of the players in the game. That being said, no FF14 expansion has recieved as low of review scores as this one. No FFXIV expansion has taken this much heat, been regarded by so much of the community as a failure. If you wish to disregard the opinions of those on the forum that's honestly valid: we're a minority. You can instead direct your attention to the User Reviews on Steam, or even the meta critic User reviews.

I don't feel a need to try to impress upon CBU3 how bad this was, as I see all the evidence necessary to tell me that Square Enix is losing face and money alike on this expansion. I don't need forums to tell me that, there are numbers that tell me that. In the event those were not enough I can check Squenix's stock prices.

Regardless of what you or I think, the message is resoundingly far more negative than any other expansion, and it's going to kick CBU3 in the pants. That is to say, in the money, and losing money is the only review that really matters at the end of the day for them.