That definition seems to be too simplistic. Jesus' teachings on the law and Jesus' teachings on magnifying the law, like if you think lustfully you have committed adultery or if you hate you have committed murder. Heb_13:8 Jesus Christ the same yesterday, and to day, and for ever. Jesus also taught that many "traditions" nullify the Word of God, that is the Torah/Instructions/Laws, statues, commandments, ordinances, etc. It may very well be that God/Jesus laws are very good and man's laws are suspect of making the good void.
Psa_19:7 The law of the LORD is perfect, converting the soul: the testimony of the LORD is sure, making wise the simple.