I just don't find that convincing. If every aspect of human planning, skill, and knowledge are reproducable via classical computing then it seems unlikely that consciousness is some special case that requires quantum processes.
Today's classical computing accomplishments are impressive, but nowhere near what a human can do. Perhaps someday soon a single AI could (in the words of Heinlein) "change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly" but that day is not yet here. If we struggle to build such a device, we might consider that our computers are too limited.
