In fact HaMoshiach said, the rabbis sit upon the seat of Moshe, practice what they say but not what they do. So if He upheld their teaching, who are we to call this "man made"? Just a thought.
Mark 7:1-13
1 The Pharisees and some of the teachers of the law who had come from Jerusalem gathered around Jesus
2 and saw some of His disciples eating food with hands that were defiled, that is, unwashed.
3 (The Pharisees and all the Jews do not eat unless they give their hands a ceremonial washing,
holding to the tradition of the elders.
4 When they come from the marketplace they do not eat unless they wash.
And they observe many other traditions, such as the washing of cups, pitchers and kettles.)
5 So the Pharisees and teachers of the law asked Jesus, “Why don’t your disciples live according to the tradition of the elders instead of eating their food with defiled hands?”
6 He replied, “Isaiah was right when he prophesied about you hypocrites; as it is written:
“‘These people honor me with their lips,
but their hearts are far from me.
7 They worship me in vain;
their teachings are merely human rules.’
8 You have let go of the commands of God and are holding on to human traditions.”
9 And He continued, “
You have a fine way of setting aside the commands of God in order to observe your own traditions!
10 For Moses said, ‘Honor your father and mother,’ and, ‘Anyone who curses their father or mother is to be put to death.’
11 But you say that if anyone declares that what might have been used to help their father or mother is Corban (that is, devoted to God)—
12 then you no longer let them do anything for their father or mother.
13 Thus you nullify the word of God by your tradition that you have handed down. And you do many things like that.”
Thus the saying: "Cleanliness is next to Godliness", but what if one's own heart is not as clean as your hands, cups and plates? Both are important, but one's heart more important than man's religious traditions.
Galatians 1:13-16 (Complete Jewish Bible)
13 For you have heard about my former way of life in [traditional] Judaism — how I did my best to persecute God’s Messianic Community and destroy it;
14 and how, since I was more of a zealot for the traditions handed down by my forefathers than most Jews my age, I advanced in [traditional] Judaism more rapidly than they did.
15 But when God, who picked me out before I was born and called me by His grace, chose
16 to reveal His Son to me, so that I might announce Him to the Gentiles, I did not consult anyone;