Yes I read the whole thing. This is large company A being mad at company B for cutting off their way below market rate service and company B being a dick about the situation. I did some more digging and 4m monthly users seem to be around 1/3 of Fanduel (Flutter entertainment). This guy is probably working for a company with over $1b revenue per year. Any company that relies on their website for all of their business should have had contracts in place with CF to ensure they were fully within the ToS or contingencies in place to pivot off of CF should CF decide you aren't in compliance.

CF said their account was flagged for domain rotation activities which is against the ToS. "This also means that if a country DNS-blocks our main domain, a secondary domain may still be available. This could arguably be seen as a violation of the Cloudflare TOS, as they wrote above.". They had 2 weeks to stop doing that or upgrade to the enterprise account. Instead they didn't do that and as soon as they said they said they were looking at alternatives, CF stopped giving them grace on the ToS violation in the most malicious compliance way possible.