All these comparisons just seem silly, unless we are soberly trying to put the disease into perspective. (soberly being the key word)
There is no use panicking, but concern is definitely warranted or else the brightest of the brightest in the medical field would not be concerned themselves. They are concerned and that is concerning. They are not panicking and that is reassuring. (not that they would panic anyway)
And think about this: Most experts think influenza is spread via droplets, NOT aerosolized droplets/airborne (there is some debate about this, however). OTOH, TB is airborne but even when exposed most people can fight it off without ill effects when they have limited exposure.
Ebola, though only known to be transmitted via fluid contact, certainly has the potential to be transmitted via other routes and the disease is quite contagious and virulent. Some strains have seemed to go airborne, thought these don't seem to effect humans. The more people are infected, the higher the likelihood of a mutation making the virus airborne.
More than any of this, it is what we don't know about Ebola that makes us shudder to think it may come here in the wild (not in a controlled manner). We don't know where it hides. Or how the patient zero acquires it. Or how several someones wearing PPE got it (at least not with any degree of certainty yet).
Panicking is useless. Arrogance is stupidity. They are both deadly.