Yes, I personally wasn't trying to convey anti-CloudFlare sentiment, I even said "and other CDN providers"
I don't think this is a 'CloudFlare vuln' or the responsibility of CloudFlare to resolve etc...
I maintain that it is sloppy work that leaks the underlying webserver IP, but also that few people care about doing so.
Marketing does not absolve you from proper configuration... clearly you have it out for this company for some reason.