Aren’t you missing the point?
First off, it IS pretty easy to spread if you intend to do so. You are confusing the mode of infection (requiring the virus to make it through the body’s natural barriers) which can be fairly easily avoided with proper facilities and protocols in a medical setting, with the extreme difficulty of avoiding infection from someone infected and intent on infecting unsuspecting others. Big difference.
And yes, ebola isn’t particularly suitable for traditional weaponizing. So what?
No one is even thinking along those lines. The prospect here discussed is using actual infected individuals as intentional disease vectors. I think it reasonable that someone with the intent and thought out plans could easily infect dozens if not hundreds of other over a week or so before symptoms become overt.
Now say you have 100 to 200 volunteer living vectors. It is easy for me to imagine 20,000 direct victims and thousands more secondary infections.
The real intent, though would not be to kill millions, as would be the case with respect to traditional biological warfare, but to instill panic and social paralysis.
It could be very effective.