if youre an atheist logically speaking you cannot believe in objective morality. You cannot believe in free will. These are two things that the vast majority of humankind implicitly believe in. We believe for example that if a person carries out a bad action, we can call that person bad because we believe that they are freely choosing those actions. And just quickly an atheist believes we are controlled completely by our genes and make no free actions at all.
Quantum mechanics (and Quinn quoted Bohr) very clearly proves that nothing is deterministic, hence free will is absolutely assured (Schrodinger's Cat).
Now if they were talking about classical physics then Quinn would be correct, but they weren't.
Nope. Some things are not deterministic.