You’re paying Cloudflare to not get DDoS-attacked or swamped by illegitimate requests. GP is implying that Cloudflare could do a better job of not blocking legitimate, benign requests.
I've only ever seen a Cloudflare interstitial when viewing a page with my VPN on, for example -- something I'm happy about as a site owner and accept quite willingly as a VPN user knowing the kinds of abuse that occur over VPN.