So, then, if I make an encounter table that matches the PCs up against a Dragon (young), some gorgons, a pack of rabid manticores, etc, and then roll on it when they're walking from Peaceful Village along the Nevertrouble Way to Safeville, and tell the players that this is the safest area of the kingdom, then I don't have to do any explaining as to why all of these horrible monsters happen to occur to the players there? They should go, "Oh, it's a game, and the mechanic you used for rolling our encounters doesn't have anything to do with the world we're playing in, cool, I get it, I'm glad we're in the safest place in the campaign world, which is just as dangerous as the most dangerous place in the campaign world!"