Indeed Angry Rebel. Until people are hurt -nothing will change. Since each pax will state (= shout in court) they they were hurt by someone ELSE's bag and that THEIR bag was within weight and size limits ...
Since any overweight, or extra, bag that is on the aircraft is there because airline staff permitted it - they will have a hard time saying it's not their fault. The airlines will, of course, try to say it's not their fault and it was a one off blah blah.