Some of the complaints are technical in nature.
Lots of stuff has been promised that simply can't happen with the current stuff that is being installed. For example the ONTs didn't have the ability to have different VPNs for data or voice traffic. The solution was to layer a VPN on a VPN and the last time I heard, it cost the same for a data+voice channel as just a data channel or a voice channel.
Some of the equipment being installed had American telco inventory tags on it. If the original equipment owner can't offer gigabit (and are currently advertising 15 mb as fast), how will the rolled out system provide gigabit?
It is also looking like nearly all the traffic in an area will go through 2 choke points. I don't think that having a system were two people with bolt cutters can take out most of an entire state is a good idea. If you calculate how many bits have be going through that system compared say a large peering point like AMS-IX, you will find the numbers are orders of magnitude larger which implies there will be some very interesting problems that have to be solved.
Then there is the single shared fiber problem that NT&T has been working on for decades and have finally given up (they now use a name implying two stars for their solution which effectively uses two PON networks). It turns out that single fiber have the same problem that radio does when you want to talk fast, your transmitter blinds your own receiver for a short time and that introduces latency. You also have to coordinate all the transmissions. An ethernet packet on this network takes up about an inch and some of the links will be 70 km long so some how something has to magically get 32 optical devices to talk at just the right time without stepping on each other. To make that even more fun, they are hinging the fiber from poles so the optical length of the signal changes every time the wind blows.
As far as attracting global users to the network, they look at the power bill first and walk away.