I don't agree. As a person who has applied in the past, a developer and a sole founder, why would I submit my idea with no NDA to basically a think tank of clerical ivy league wunderkind waiting in the wings for a call from PG for a shovel ready project or a "pivot." All this in exchange for a "thanks but no thanks dude!"
I was on the fence before about applying to "incubators" (I know YC is technically not a incubator), but this solved it for me. Ideas are worthless, execution is only slightly more valuable and YC is an idea execution factory. To be honest, it's an enviable position. I do appreciate the transparency.