There should be more ways to get help if you are at a pre-YC stage. I'd imagine there are a lot of startups that fail before they get to a YC stage.
Startup School is good but it's not ongoing. Most VC firms have been more helpful than YC in the early stages personally.
For example, I've had VC firms write me a letter of recommendation for a visa when that's not something YC would do.
I can see YC is trying to increase flow. Why not make it more organic?