Some people just do not understand that employees are more productive if they are comfortable. They think employees need an eye behind its back in order to produce.
And if it is that way, it is their fault, they have chosen bad when hiring.
You are right, it is a great move. I do not like it either, nor use it, except when I need to find small commerce sites in my city. I know they do not have their own webpages, so it is useless to look them on Google, but they all have a Facebook Fan Page.
With this move, Facebook will get even more business, and less and less small companies will see the need to build and maintain their own sites.
It is also a great move against Shopify