There is nothing in the Cloudfare ToS that state that if they find the content objectionable that they can terminate the service.

https://www.cloudflare.com/terms/

The only way they can terminate the terms is:

"Cause for such termination shall include, but not be limited to: (a) breaches or violations of the Terms of Service or other incorporated agreements or guidelines; (b) requests by law enforcement or other government agencies; (c) a request by you (self-initiated account deletions); (d) discontinuance or material modification to the Service (or any part thereof); (e) unexpected technical or security issues or problems; (f) extended periods of inactivity; (g) you have engaged or are reasonably suspected to be engaged in fraudulent or illegal activities; (h) having provided false information as part of your account; (i) having failed to keep your account complete, true, and accurate; (j) any use of the Service deemed at Cloudflare’s sole discretion to be prohibited; (k) use of fraudulent payment methods; and/or (l) nonpayment of any fees owed by you in connection with Cloudflare.com and associated Services."

> ... but not be limited to: ...

Meaning "and anything else we forgot to include or think of later," so "woke up pissed off at you" is a valid reason for termination under that clause.

To to mention that "j" is broad enough to include pretty much any content-based decision.