I haven't watched that video for a while, but I remember him kind of conceding that the axefx did sound like "the real deal" (5150) but that it was a very expensive alternative to the 5150, and that you might as well just buy a 5150. I remember thinking that this would make sense if you only ever play the same style of metal, and the 5150 sound is all you ever use. In this case, the axefx2 capabilities would be wasted.
However, I think he missed the whole point of the axefx - a lot of professional musicians are called upon to be able to get all sorts of different sounds, and, with 200+ amps in there, the axefx represents incredible value.
I also remember he went on about how fractal should be ashamed of themselves for making the MFC-101 so expensive. This was his most uninformed opinion in the video, because there really is nothing else like the MFC-101 in the marketplace. (It's built like a tank, its incredibly easy to use, and has tight integration with the axefx, and if you have an XL, or XL+ , you can connect it up with a single ordinary old XLR cable, which. is really awesome )