Well, let's imagine that the Dino-Vino thing was real. Well it got leaked and then you see that the entire response was this awful and that people were calling it the most moronic thing ever wouldn't you pull it from the game and say 'What? we never had a dinosaur in the game, that's stupid, you're stupid.'
Seriously, though. I was the one that brought that thing from 4chan that had all those ludicrous claims of what was going to be in the game and they all turned out to be true so you can't blame people for not wanting to dismiss every bizarre idea that came after.