Amazon’s ‘worker cage’ has been dropped, but its staff are not free

When I saw this it looked more like a safety device than a way of imprisoning workers, and it seemed like a lot of media sensationalism. Am I missing something?

Not saying Amazon doesn't have bad working conditions in its warehouses, but they seem to be of the more mundane variety: overly long hours, lack of breaks, crappy pay, fire-fast, etc.