Actually, they are saying no more than 7kg's ... it seems leniency over 8kg's is gone (unless you can elaborate from insider knowledge?).
Boeing have made large bins ... so the airlines penalise the pax rather than deal with the problem logically, like for instance, roster guys and girls onto flights (which most do anyway) which also helps with crowd control issues they may very occasionally really need. With some basic procedural modification, petite ladies need not close the bins, that could be the guys. I wonder how many airlines have voiced their disapproval of bin sizes with Boeing? I actually think those drop down bins are great. Pretty hard to have carry on fall out of them. I believe the bins are on struts and could be adjusted so even the petitest lady could close them fully loaded. Moreso, if these petite ladies can't close an overhead bin, how on earth can they carry out many of the other tasks that they train for, like lifting emergency escape doors up and throwing them out the hole? Surely there are minimum crew physical requirements? Not everything is a "discrimination" issue, some are really just plain common sense. I really hope we don't have any blind pilots, as I'm not sure the white canes are long enough!