As of 2009, many parts of rural NH (and even parts of larger towns more than a couple of miles from the town center) could only get dial-up, and often not even 56k. It’s not profitable to extend coverage to areas with fewer customers per square mile, so the ISPs generally only offer cable/DSL broadband to densely populated areas.
Given that most people live where broadband is the norm, it is assumed that most people have some form of broadband. Software is designed according to the most common demographic, not for the minority that live in rural areas. Given that there are African villages with satellite internet access, it doesn’t surprise me that a company that is notorious for software bloat made things that won’t function on less than 1 Mbps.