Download only, yes? And what about the busy-Sunday night problem? This seems so besides the point.
Cable at an apartment building I visit is often 300mbps, but Sunday evening it can have horrible jitter and lag and much slower speeds. It's incredibly frustrating; common sites can be basically unusable.
This also feels like it's setting a bar where most DSL systems wont have any chance of competing. In cities I can be more sympathetic (put in more pops) but in rural areas, this feels like a barrier that is extremely cost prohibitive to make happen, for not great reasons.