I've been having DNS issues for years resulting in irregular but repeating disconnection, lag spikes and very low kbps, with days of excellent connection followed by days of terrible or no connection, it's quite annoying. Strangely enough, my internet could not be better yesterday and today, been able to finally download a few of the games I've bought on Steam.
I think we should be very careful with implementing new rules and regulations after an event. Bad guys always seem to be good at avoiding or skirting them while the common folk get more prying eyes to see if we're not doing anything bad. What should be done, in my opinion, is to look into the weaknesses of connections, bottlenecks, land and sea lines and try to improve on those, to keep the internet going during such an event.