No, WP doesn't use Google as a primary source. Neither did I. The first page of Google results includes sources in mainstream print publications, many of which have YC as their actual subject.

If you have a concern about sourcing, there's the "refimprove" tag. An uncontested "prod" deletes the article. It is bad form to prod things you didn't even take the time to look up. If you want evidence to that affect, try slapping an AfD on the article and see how long it takes to speedy out.

Then, let me know you did, so when your RfA comes up, I can cite the AfD. RfA's have failed over silly stuff like this.