There's a disturbing amount of fanboi-ism here.
and
are just two examples.
Anyway, people break promises to keep secrets all the time, in all walks of life, at all levels of responsibility. I'm not sure why Sigil thinks it can keep an airtight beta with an NDA. And if the haters are wrong and the game is much better than they say, the NDA is only preventing those with the real knowledge about how sweet it is from talking.