Oh, I'm not sure that the permanent diaconate should end.  I think that deacons can serve a function.  There may be people who don't want to be ordained as priests, but want to serve as deacons.  Why would that be bad, in and of itself.  
I think that what is bad is the  sexual discrimination that exists.  Once women are able to serve in all capacities in the institutional Church, then this issue will be addressed.