 If you are divorced and remarried civilly, the church never granted a declaration of annulment, so you're objectively living in adultery as Jesus himself taught. And if you as a Catholic say, well, then you shouldn't go to communion, well, that's just legalism. So the word has been emptied of its meaning. It has to do more with the way in which the scribes and the Pharisees tried to trap Jesus. That's big-time legalism.