This is garbage.
His Ebola exposure took place only four days before his departure. He had bought his airline ticket (and presumably obtained his visa) well before that.
http://gotnews.com/exclusive-gotnews-com-leaked-flight-info-ebola-dallas-patient/
Bryan Preston needs to improve his reading comprehension. How would SafeWay Cargo manager Henry Brunson, who admits to not having seen or heard from Duncan since he quit his job (as Brunson's driver) on the 4th, be a witness as to whether Duncan knew?
That same Liberian article, to which Preston links and from which he quotes, also quotes the cab driver indicating that he was not told the nature of the pregnant woman's illness. That would leave open the possibility that Duncan wasn't told, either. The fact that he didn't demand Ebola treatment when they sent him off from his first ER visit with antibiotics would also support the fact that he didn't know he he'd been exposed and did not travel to the US in order to get effective Ebola therapy.
I agree with everything in your post.
The other possibility that many seem to be overlooking in this whole scenario is that although we in the US are continually tracking the entire Ebola outbreak minute-by-minute, that may not be the case in Liberia.
The population in Liberia in 4.4 million, and the known Ebola cases are roughly 3800. That is a very minute percentage of the total population, and they aren’t sitting at their computers or in front of their tv’s watching this horror unfold.
Many just don’t take exposure as seriously as we do because it is still somewhat rare until it actually hits in that area.
Look at Duncan’s behavior while still in Liberia: If he were really convinced that the woman he helped had Ebola, you would think he would have taken more precautions, but he didn’t. He may not have thought he was seriously at risk until the other family member came down with Ebola and died (the brother of the pregnant woman).
I don’t know if that’s actually the case, but it seems like a real possibility.