Running in "barefoot shoes" is NOT the same as running barefoot!
It's easy for folks in these minimalist shoes to say they're running barefoot - there is little/no support in these shoes, they're flat and very flexible. Essentially they're just a glove for the foot to keep it protected. However, this does not equate to running actually barefoot. So much of running barefoot is based on the feedback one gets from skin contact with the ground. It influences form, cadence, and impact. These minimalist shoes don't allow for that feedback. Sure, barefoot technique is very important in minimalist shoes because of the lack of cushion, but the two are not the same. I can say that because I have done (and still do) both.
Bottom line: shoes are shoes. Wearing even the most minimalistic shoe and saying you're a "barefoot runner" is misleading.