Could you send me an email with details you have available, (rayID, IP address + website, or HAR file) at amartinetti at cloudflare.com?
Edit: even if you just mean whitelisting their proxy ip... that doesn't do much good either. It's like asking to whitelist tor - those IPs are blocked because a good amount of spam or malicious traffic originates from them, not because there are x0,000 users on each.
> That's why it's not just browser, it's browsing habits based on your IP and location in addition to fingerprinting where appropriate
Mini is a barely configurable hosted browser with one IP, one location, and one fingerprint. It doesn't return anywhere near full HTML/JS/CSS, but highly cut-down code generated by Opera's server. Unless somebody has found a way to hack that server, I'm at a loss as to what damage it could cause.
This seems to me a case of sloppy use of overly broad security tools.