The fandom contains a massive culture that is populated with people who think that if they have big enough temper tantrums, they will always get what they want. I suspect they grew up with absurdly permissive and over-indulgent parents. In fairness, this is pretty much endemic to most genre fandoms these days - not just Trek. Baked into the DNA, more's the pity...
To be fair, the whole reason SNW existed, and TAS, was fan demand. And the TOS movies. And PRO S2. So...