That's awesome that you haven't experienced anything bad with them yet, but the number of negative posts about PW compared to the positive ones speaks volumes and should throw up a red flag to anyone who will be crossing paths with them. The Gartner Symposium at CSR is a group two to three times the size of Pop Warner and you virtually hear nothing about them. There's also many other children's sports teams and groups that stay at varying Disney resorts throughout the year that go unnoticed. Pop Warner has become infamous and not in a good way, and that's enough for me to not want to chance it. For your one good experience, there's about 10 bad experiences to counter it (unfortunately).
I don't have a horse in this race but I respectfully disagree. The disproportion of negative to positive Pop Warner reviews just highlites human nature. People love to tell the World about a bad experience but don't often take the time to rave about an adequate or even exceptional experience.