For me hardware at WWDC makes perfect sense. They're saying 'here's the software, now here are the tools for you to go and develop for it'.It's very often been about both
Some of the best or very interesting and/or most iconic hardware has been announced at WWDC
iPhone 4, 2012 MBP 15", iPhone 3G and 3GS, Mac Pro 2006, 2013 and 2019 and PM G5, Cinema Display, HomePod, iMac Pro...