I'm siding with you on this.
For the at home/small business user: I think one of the big things drawing people to "the cloud" is that you don't really know how it works/where/what/why. Or rather, you don't need to know any of those answers. "The cloud" is so simple [well, meant to be], whereas this is like a step backwards where you have to setup, configure and learn to use it. And people that do want large capacity, fast speeds - they buy a NAS.
Although I could see the appeal for big business, mainly for the points mentioned in the video (know where the data is, large capacity, locally located so LAN speeds) However, I reckon very quickly big businesses will pass because of the need for many users to access at once and I'm guessing the Podzy only has standard HDDs in them (upgradable? changeable?)