In as much as i don't want this to happen, you may be correct, for another club to win the title, the club has to take every opportunity they get, and what that means is that anytime bayern aren't winning, the team must try to be consistent and win as often as possible so they can stay many points above bayern. But if it happens that even if bayern are poor and drop points, the closest team to them and possible title contenders will also drop points, then since bayern has the stronger team, when the games start coming thick and fast they will surely be in a better position to get more points and win the league.