It also says ultra violet radiation kills it. Instantly. It would have to be a ton of live virus in liquid to live for that long. Dried is simply not proven to cause infection. Even if spores were still alive in dried form out somewhere in the public (always in the dark mind you) whoever came in contact with it would STILL need to absorb it into their blood stream. It’s infectious not contagious.
It says UV kills it, doesn’t say instantly. It does say the virus can live for days outside the host at room temp.
Ebola is not a spore, its a virus. All it takes is 1 single organism to contact the right place and you can catch it. Touch a table and then your eye or lips, or a cut and you can pick it up.
This is why medical staff are catching it, IMO.