As I wrote elsewhere, previously. I agree it's a mess, but not the end of the world. Extract the file -not- preserving directory structure(-j flag). Now you j

As I wrote elsewhere, previously. I agree it's a mess, but not the end of the world. Extract the file -not- preserving directory structure(-j flag). Now you just have everything in a single folder. Then delete the metadata files by file extension. This took all of a few seconds to do for each zip.