Thing is, there's no evidence that "something is going on at a quantum level". Thus there's no particular reason to postulate this (unnecessarily complicated) hypothesis, unless one believes that deterministic mechanicism is philosophically unacceptable when it comes to consciousness.
1. "emergent property of large, dense neural networks w/memory "
2. "Maybe there is something going on at a quantum level"
3. consciousness is mystical, otherworldly device
A lot of people who oppose 1 and agree with 2 are unfairly lumped with position 3.