Nas talks more about the "State Property" movie than The Roots ... AND he didn't call The Roots 'sambos and porch monkeys', he said they played sambos and porchmonkeys in Bamboozled.
And he does have a point about "What They Do" vs playing with Jay-Z (even though Nas is the last one who should preach about 'jumping the bandwagon' and jiggyness).
However, saying that dreads don't make you a conscious person is kinda dumb right now, with Thought being dread-less for a few months already. LOL
Conclusion : after hearing the actual audio, I don't think that Nas' statements calls for a disstrack or battle. He should at least come with a track first IMHO.