I couldn't disagree with you more. People really need to stop believing that just because the game is named "Warcraft", the entire planet of Azeroth needs to be smothered in wars between anyone and everyone because it's Warcraft so it has to be that way. The pandaren make perfect sense in terms of WoW lore (if you're willing to get past the "giant continent that's been hidden in mist for 10000 years" part, though even that's believable in terms of it being magic), considering a planet does not share a common culture/way of life throughout all of its continents.
Besides. I seem to recall seeing quite a bit of war in the Townlong Steppes/Kun-Lai Summit.