Every single contract I have ever signed had this clause in it, and it's never kept me from working. They don't actually sue you, and for those that it did happen, the contract was thrown out as being too broad.
So to be clear: you are in no way arguing for the value of Non-Compete agreements. You are saying that at worst this does absolutely nothing (prevents clauses that are unenforceable) but is harmless. At best it prevents a chilling effect discouraging people from looking for different employment.
I don't see the problem here.