1. As noted in prior comments, Cloudflare wasn’t blocking this site previously. The site operator chose to make their site unresolvable by Cloudflare.

2. 1.1.1.2, the resolver being discussed in this post, is explicitly Cloudflare’s malware-filtered DNS host. 1.1.1.1 does not filter this site.

If you want "neutral" DNS now, run your own resolver and hope upstreams don't backstab you ltaer, because outsourced trust never come free.