I have a metric ton of respect for Jeff and his team.

However, I do think that they did not go far enough in figuring out the computational capabilities of individual pyramidal neurons, which IMO is the foundation to figuring out how the neocortex works. I wrote a short book about that once - if anyone's interested, check it out, it's free and meant to be readable for AI/neuroscience enthusiasts:

http://www.corticalcircuitry.com/