Looks like a Kubernetes-specific CTF sponsored by Google. And, yes, they won $10k, but donated it to charity, in which case Google matches the donation (https://g.co/vrp):
>We understand that some of you are not interested in money. We offer the option to donate your reward to an established charity. If you do so, we will double your donation - subject to our discretion. Any rewards that are unclaimed after 12 months will be donated to a charity of our choosing.
