Probably as close to a conclusion as you'll get:
“Making people feel safer on bikes should not mean equipping them with high-vis and reflective helmets,” says Jack Harris, owner of London’s Tally Ho! Cycle Tours. “We need infrastructure that allows a broader cross-section of society to get onto a bike.” The places that are serious about encouraging cycling as a safe, accessible and pleasant mode of transport have some tough decisions to make about vulnerable users, including cyclists, in the allocation of urban space.
Riding bikes in traffic - what seems dangerous is usually safe; what seems safe is often more dangerous.