I don't see why James is the one to adjudicate this discussion, but what ND claimed to have and what would actually be a valid argument are two different things.
In order for the travel and refugee bans to make sense, what matters is the violence committed by those travelers and refugees in the US, which would be the evidence that our vetting process is insufficient and immigration needs to be halted until we have a better process. Ogion's data speaks precisely to this point.
OR, like Obama, you need a specific credible failing of the vetting process that needs fixing. In 2011, the issue was fingerprints found on roadside bombs in Iraq, and two terrorist plotters in Bowling Green KY, which prompted the Obama administration to slow down admission of Iraqi refugees while they fixed the vetting process. Frankly, I don't think there's any possible specific credible failing or threat that would justify a ban of this scope.
Of course, all of this is moot, since ND has provided fuck-all.