Wouldn't it prevent people interested in creating an ISP in any area that has "free" facebooknet? Especially if the services provided by facebooknet is most of which people would want with an ISP anyway?

So not only does it prevent competitor websites, but it stops competitive ISPs, too. It's especially bad if this coporate network is censoring information. No opportunity to even discover non-filtered information outside the info bubble. This triple whammy is the consequence for those involved or not.