That "Alliance FIST-PUMP! moment" was an unnecessary trouble since its conception:
-General mistake:
>Playing along the immediate wants and lusts of playerbase, rather than getting concerned with long-term effects and/or devising an alternative option [i.e - immersion factor in scenarios that involve loss or failure, potential "fun" of such moments] that would be more viable than playing "Europa Universalis" with 'who gets to control more zones' as a reward in itself.
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a mistake that should have NEVER happened:
>Metzen openly and repeatedly announcing the 'Fist PUMP! Moment!' was one big-ass mistake in itself.
How would people react if Dalaran scenario ended up as an unexpected 'surprise' rather than something to fill the Fist-pump quota? We will never know, we can only speculate.
How people reacted to Dalaran scenario in the face of 'Fist pumping' being Blizz-confirmed? -An average of a few outraged threads every single day, with even more people disappointed yet not caring enough to voice their opinion on the internet. With the confirmation of eponymous 'fist pump moment', every single perceived inequality, every harm or loss experienced directly transformed into ever growing expectation that already couldn't have been sated.
Sure, no news from Metzen would have pissed off a good few folks back then on the grounds of inactivity, but how many more have been infuriated with the 'paradise' that their Metzen-prophecied 'religion' granted them for their cheaply bought patience?