Well, it's logically true that projectile vomiting, inadvertent spittle, and things of that nature could land on surfaces and or attending medical personal, (which is why they wear masks and shields, or should be, but that transmission is not considered to be airborne and it does not travel very far.
The term "airborne" is being misused here (again) to give one the impression that distance is not a factor.
But it is..
The same claims were made regarding the Reston outbreak with monkeys and they could not prove it there either as the only evidence was some excited utterances and opinions of a staff member.
If someone wants to believe that you can catch Ebola from a patient by being in the same building or somewhere downwind, they certainly can. But that idea, along with many other "ideas" are just speculations with no basis in fact.
On the other hand, we do have a idea how these medical people are getting infected and there is even visual evidence for that, showing that they were/are reusing their protective equipment. (masks, gloves and gowns) This leads to speculation that they may not have it available all the time. Total body, eye and face protection is mandatory with this type of disease, as are protocols for the donning and doffing of them. If you want to speculate, I would speculate in that area and not on "airborne" transmission.
Please read the Doctor’s article in its entirety, if you haven’t. It is logical and well reasoned.