"You can please some of the people all the time and all the people some of the time, but you can't please all the people all the time."
This is an open source project... parts are made up by many different people, some are good parts and some not so good. Many of the parts were made up for their own use and just shared with others. The parts you need may be some where, just not in the Fritzing library. Could be in this forum or someplace else. It is too bad that we can't get all the parts in a single place and catalog them where it would be easy for people to find them...