Was that person confirmed with Ebola? I didn't think so. Even so, that person went into confinement.
The issue here is transmission. This is a virus, while it may mutate, it doesn't change it's method of transfer. It is not transferred via airborne. Unless this person vomited on, had diarrhea on, splashed blood on any of the mucous membranes, or any open wounds of the other passengers, there is little to worry about.
This is a mid-term election year. This is also fear mongering at its finest.
I'm sure you remember the AIDS fear of the 80's, I know I do. I lived the scare due to a blood transfusion in '83, got tested every 6 months for 5 years. This is no different. As a healthcare worker, I can tell you that this is no different. It's not airborne like the flu or the common cold.
Let's go to West Africa. Shall we? Their literacy rate is 25%, approximately. They have very poor sanitation systems, and they live in crowded living conditions wth very poor medical systems. It's no wonder it is rampant there.