This doesn't really hold water. Iron weapons aren't really any better than Bronze, it's stiffer and lighter with an equivalent size blade but not any harder or

This doesn't really hold water. Iron weapons aren't really any better than Bronze, it's stiffer and lighter with an equivalent size blade but not any harder or sharper. Bronze can be cast in more complex shapes that can help with weapon effectiveness and even during the Iron Age bronze Weapons were used alongside iron ones. Iron is much more abundant so the revolution of the iron age was having much cheaper and accessible metal, not superior. It isn't until Steel that you really see bronze (and iron) become clearly inferior.