I've not heard that. From my current understanding, they generally don't evict a site when there is no risk of legal action. Maybe you're thinking of their reputation for being too strict on filtering TOR users?
I definitely wasn't thinking of the Tor thing. Maybe I was just overestimating how common it was. Looking again, the only sites I can find that Cloudflare evicted even though there was no risk of legal action were the Daily Stormer and 8chan.