I hate this passive voice. It implies there was nothing that could be done, that this was just a force of nature. That it wasn't an active choice by YC, but rather just some eventuality.
Most of us understand the necessity of hard decisions. Own the outcomes. It's ok to say, "We fired 17 people, because their roles were no longer needed by us".
If you think that looks too bad, then don't do the thing -- find other opportunities for the people in the company.