FCC needs to care about stability through statistics like packet loss. In my hometown area, the sole DSL provider in my area oversold capacity and it demolished the DSLAM. Ironically, they also took advantage from the Connect America fund to do this. I did connectivity tests to various hosts throughout the days, pings were 500ms+ 40% of the time and packet loss was 1%.
I can't be the only one that this happened to.