Since they don't own Java, they can't "deprecate" it. They are just ditching their own implementation of Java. According to them, because release cycles of Mac

Since they don't own Java, they can't "deprecate" it. They are just ditching their own implementation of Java. According to them, because release cycles of Mac OS X and Java don't match, thus Java being generally a couple of versions late on the Mac. Windows don't ship with Java preinstalled and it isn't that big of a deal, people install it the first time they need it and that's it. That's what is going to happen on the Mac.