If you read about it instead of the headline you would have discovered that the casino was simply trying to take advantage of cloudflare in a similar fashion they had been doing to people gambling in their own casino, by leveraging the cheap tier cloudflare provided and slamming the network which was a detriment to other users with smaller bandwidth needs.

Imagine a slow semi truck hogging a two lane road and getting mad at you for trying to go around him just to go home. Cloudflare said they had six months to pay for a higher bandwidth trunk or they can go fuck themselves. The casino did nothing for six months, so they got to go fuck themselves