Aren’t all hookless zippers like this? With the male/female metallic part extending so that the rivets go through them?
Quick google shows that you are indeed correct...
It's weird though, because i keep reading people complaining that Hookless zippers are crap, failing early, hard to zip up, need full attention, etc (at least the ones Aero uses)
I don't know if there is a difference between a Hookless branded zipper and the Whizzers, but i have not experienced any problems with Whizzers.