Suppose evil is real as being in a power rather than just a lack of good. Then they risk distorting what it is and thus assisting it. Evil whatever it is needs competent diagnosis.
The argument that evil is not truly evil or genuine but a distortion is evil for it is about defending the integrity of a person, God, who might not even exist. It is very seriously wrong to present such a serious claim that evil is our fault and not God's without clear proof and evidence. There are two points here. It is wrong to regard God as innocent of something so serious for that is a matter for evidence and proof and investigation. It is wrong to regard humans as to blame.
REPEAT THIS TO YOURSELF: To say there is a sense in which evil is not real and thus not created except by us to spite God is terrible unless you can place the existence of that God beyond any serious doubt.
Belief in God is not enough to justify this assertion. It is not based on a high enough standard. Religion says belief is necessary. If it is then belief is a necessary evil. It is something we have to make do with when we have no proof. Fair enough but that means that having religions and ceremonies and Jesuses to celebrate God is evil. You do not have the right to celebrate necessary evil. Once you do that you are making unnecessary evil.
By proof we are not unfair enough to demand 100% proof. Belief in God is an example of something that shouldn't be based on faith but on proof. Or if proof is impossible on strong and excellent evidence.
Belief would be evil then for without evidence it is mere superstition. And it is evil for it is attempting to make toxic declarations about us and evil in order to shore up the credibility of God. It is odd to use something that is evil, such as belief, in order to excuse evil!
It is hypocritical and being hypocritical in the face of great evil and suffering is criminal. The argument that God makes no evil for evil is a lack, is evil for it doesn't care about how evil affects us. It may agree with Jesus who said we must be willing to give up everything even health and our very existence for God. But it is proof that those who link God and true humanitarianism are lying, mistaken or stupid.