...let alone 10 Gbps. The physical cable plant would have to be extended up to at least 1600MHz in order to hit that kind of speed...for a single customer. Verizon can do the same thing with X-GPON but at this point they're just rolling out standard GPON.
The parrot also ignores the fact that Google Fiber is still 20X faster than the fastest, more expensive, tier available from competitors in KC. FiOS isn't available for hundreds of miles. Not from Verizon anyway. Even if it was, $70 would buy you maybe 50 Mbps down, 25 Mbps up. So Google is 20x faster on downloads and 40x faster on uploads than its nearest commercial competitor (you can get 50 Mbps symmetric from EPB for $70).