I suspected worn shoes but on inspection they seem to be fine (~4.5mm)

But when I actioned the handbrake I noticed that the lever on the rear brake shoe that the handbrake cable actions is very loose on its mount - check out the video below ....
http://youtu.be/tmVly4eRzNA
Could this be the problem .... ???
Do new shoes have a new handbrake lever or is it transferred across onto the new shoes (I can't see how the pivot pin attaches )??