Is it more or less outlandish than cancelling a preorder for a game you like because it's in 2D? He obviously doesn't care enough about Citizens of Earth to give it a chance if it doesn't include a feature he likes. Isn't that almost exactly what you're doing with Theathrythm Dragon Quest, except that you actually like the game in the first place? I don't like it when 3DS games are not in 3D, it feels cheap, but calling other people outlandish for their decisions while you yourself are doing the same thing, except with a game you actually like, is a bit extreme.
Also, not everyone who quotes you is out for a fight. You can set your alarms off and drink less coffee. Someone replied to you showing sympathy and you called them an asshole. Think about that for a second.
I cancelled my DQ preorder because I feel that the lack of 3D hurts its value to the point where it no longer justifies its $50 asking price. This isn't the same thing as saying that it's "unplayable", which would imply that the game is completely worthless. I still enjoyed the demo and will probably buy the game if the price comes down. Citizens of Earth is a top-down RPG which would've looked cool in 3D, but it wouldn't have affected its playability one bit, which is why I was skeptical of Jo Shishido proclaiming it to be unplayable. I was wrong, I apologized, lets move on.