...and then silently got back to talks with DoD [0] and gave them the Mythos model. Separately, they went back on their promise to only develop models that they can guarantee are safe [1]. I reckon considering which country they are HQ'ed in, building skynet is in their destiny.
Lines drawn does not mean "refuse all communications". They were very clear that they wanted to continue the partnership, but adhering to the terms of the contract. I personally think that is the best stance- support the good work and avoid what they deem as bad.