>>Droplets travel short distances, less than 3 feet (1 meter)
from one person to another.

Right. There needs to be virus in those droplets and then you'd need to get it on/in you despite the space suits these caregivers wore. IME other fluids are more of a risk, especially if you contact them further away from the patient when your guard is down.

Here's what "Doctors without Borders" has to say on the topic:

In general, MSF accepts only some 20 percent of the people who apply to work with us. For Ebola programs, the selection process is even more exacting. We only send out people who have had prior experience with viral hemorrhagic fevers and/or similar emergencies. Once approved, they must go through comprehensive training designed to prepare them for the rigorous and demanding work they will experience under difficult conditions in the field.
...
They wear full personal protective equipment—PPE—that negates contact with the bodily fluids of patients. PPE use is governed by strict protocols that call for staff to observe a “buddy system” when putting on and taking off the suit, to make sure it is done properly, so they are protected from head to toe.

Before and after entering the high-risk patient wards, they spray themselves with a chlorine mixture to kill any traces of the virus. Because the suits are hot and cumbersome, staff limit the amount of time they spend inside the patient wards. When possible, they try to avoid using needles to administer medicine, to minimize the risk of puncturing protective gear. And whereas most MSF workers commit 9 to 12 months to a mission, field staff in Ebola programs spend four to six weeks at a time in country before rotating out, due to the demanding nature of the work.
...
At present, there are more than 3,200 MSF staff working on Ebola in West Africa. The total number of people who have worked in Ebola projects since MSF began its intervention last March is significantly higher. To date, 24 MSF staff have contracted Ebola and 13 have died. Ten have survived, and one, our colleague now in New York, is in treatment. Twenty-one of the 24 have been national staff, people who live in the country in which they were working (national staff make up the vast majority of MSF staff around the world). Three were international staff, or “expats.”

After each and every case, MSF conducts an investigation to figure out how someone was infected (the same happens after security incidents in other projects as well) and protocols are enhanced to address identified vulnerabilities. In the case of the national staff members, it was determined that the vast majority became infected due to contact with people with Ebola outside of MSF facilities, in their home communities. The international staff members who contracted the disease and were later treated in France and Norway were deemed to have become infected due to chance encounters in a triage area where new patients are screened. MSF is still investigating how Dr. Spencer might have become infected.