It's not even a simple question of the average speeds of internet connections in America. It's a question of whether there is ever a legitimate reason for the XB1 to be disconnected from the internet. I have an okay connection speed most of the time, but a month ago, over a course of a couple days, my connection started to get really erratic and eventually died. My cable modem had died. I went over a week dealing with terrible Comcast customer service. All I wanted was for them to send a repair person to replace the modem as soon as possible.
But for Comcast, it was all about the up-sell. You see, they didn't want to just replace my old modem, they wanted to use the "opportunity" to push me to a more expensive plan (as I later found out) with useless "features" like IP-based voice call service. I had no interest in these features but the customer service rep assured me that my bill wouldn't increase and my connection speeds would be higher. What's not to like in this deal?
Of course, I find out when my bill comes that the new plan is $20+ higher due to the useless voice calling. People complain about NSA wiretapping but I would love to have access to the recording of that conversation to prove that Comcast lied to me.
Now imagine what would have happened if I had to be connected to the internet once every 24 hours to play games. It was bad enough that I had no internet for 7+ days but now I wouldn't even be able to entertain myself with single player games. I know it's beating a dead horse but the fact is that I should not be hindered in any way from playing Angry Birds on my console just because Anonymous is DDOSing Microsoft's servers or I just moved to a new apartment and don't have internet service or my internet took a dump because the cable modem kicked the bucket or because I'm just lazy and don't want to enter my WPA key into the console.