I've used Transcriptic in a research setting for a while now. From a user's perspective, it's like looking into the future, and it's awesome.
From the business side, this makes YC a more attractive option for biotech startups. The life sciences are still very capital intensive. While the New YC Deal helps in this department, many businesses still need to look toward an STTR/SBIR grant from the NIH to get to the stage where they have a product to show investors.
Moves like this probably won't change that for a ton of companies, but there are a few on the margin who may be able to pursue an idea through YC with the benefit of the extra $20K in fuel.