Yes, the company offering free service if you pay a one-time fee for the hookup (a fairly reasonable one, at that) is totally making the digital divide worse. Clearly.
The pricing of their gigabit offering is fantastic. And while that price is undoubtedly out of the reach of poor people, so is almost everything. If it's really that important to have gigabit internet for the nation's poor, then that's something the government (as well as charitable organizations) needs to subsidize, just like with anything else that is deemed necessary (but too expensive for the poverty-stricken to afford). In no way can Google be reasonably found to be at fault here.