Why? Who would go through the cost of developing a drug to protect from Ebola, when malaria infects >300 million a year killing more than a 1 million. Ebola kills maybe 30 people every couple of years.
The paper in question shows a concept which may or may not work for non-human primates, although, as the authors say, their work increases the hope for a possible protection. Nevertheless, this type of proof-of-concept papers gives me some confidence in my investment. Thank you too for enlightening us about ebola threat.