Zaire ebola virus is not a strain, it is a sub-species (EBOV). The virus manifest during the current outbreak is a strain; moreover we don't have to guess at the case fatality rate for this strain, it is derived easily from the case data and has consistently been around 56%. The Canadian observation was not well controlled and there could be other explanations. BTW, the Reston ebola virus (RESTV) sub-species has similar anectdotal evidence for airborne transmission, but again it was an observation made under poorly controlled conditions that permitted other avenues of infection (cross contamination).
You state that you worked with dangerous pathogens before.
Could you explain your 56% mortality rate please. Are you using total number of cases reported which includes all those suspected of having contracted Ebola and lab verified cases?
Using only the verifiable lab cases, a smaller number and total deaths one comes up with a number in the mid and high 80 % range, consistent with the upper range for the ZEbola.