http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1997182/pdf/ijexpath00004-0007.pdf
I just scanned it, but it seems to say that Ebola can be transmitted in aerosol form, but not that it similarly contagious as influenza.
I believe he was citing this study on the temp differences in viral survival http://www.mdpi.com/1999-415/4/10/2115/pdf
The aerosol form described in that paper is artificially generated, in which the animal is confined, immobile, while an aerosol is generated directly into its face. The virus does not even have time to dry out in that condition (drying kills it).
Getting sick from breathing an aerosol does not mean that one who is sick can generate an aerosol. For example, people who get sick from breathing anthrax spores are not contagious at all.