Ebola was serious, but was located in only few counties. If Ebola would have reached US, Europe, China, SEA, it would have caused the biggest havoc in modern history.
Sure, a cure might eventually be found. Or might not (Ebola, MERS, SARS don’t have a cure). Heck, even more historically deathly diseases like the death plague or rabies don’t have a cure. Dunno why people are taking for granted that a cure will be found, and it will be found soon.
And yes, it is not gonna cause the dawn of civilization or cause a Zombiecalypse, no one is saying that. But it might kill a lot of people, cause an economical depression and essentially make this year a lost year for all purposes.