This website is wrong in so many ways. Cloudflare isn't perfect and too much centralization is an issue but the arguments in this are wrong and emotional.

"Cloudflare is shielding cybercriminals" So? Criminals use many good services, it doesn't make the service bad.

"Scaring internet users into thinking their ISPs are insecure in the middle of a global pandemic" ISPs ARE insecure because of this. The global pandemic has nothing to do with this. Do we get mad at CVEs all of sudden during a pandemic?

"Falsely advertising their VPN application" It can be safer depending on the situation. If you need model closer to zero-trust (still not zero-trust though) use Tor.