I'd say (although until seeing the DDoS numbers, I suppose I can't assume anything) that any large hosting provider like this should have an infrastructure in place for taking care of a large attack like this. To have any less at this late a stage in the game for them, speaks of a general enough incompetence as to be enough reason to move services, let alone 'political' type reasons.

I've seen (and experienced) 10Gigabit+ DDoS attacks and generally they end up taking down the entire data-center, but that's smaller provider levels. I can't imagine that level of attack should take down Godaddy, but then who knows what they're actually running behind the scenes. Essentially, what I'm saying... is this is a large enough issue with the internet today that a provider this large should have had at least SOME protections in place for this already (And perhaps Verisign might have been a decent enough choice, or Prolexic...).