Think about what you said there. Could your Vista play Divx files out of the box? Didn't think so. So Microsoft is suppose to add the function to a format they have no control over? Awesome, I'll call them up because one of my Divx files isn't working in Windows Media Player.... oh wait. You know why Windows tries to do everything? Because it has too. OSX includes many applications that are not a core part of the OS. Hell one of Apple's favorite marketing slogans goes something like "Does what you want out of the box" or some bullshit. Linux comes loaded out its ass with useless applications for 80% of distros and certainly all the popular ones are like that. But damn it! If Microsoft includes MS Paint in one more OS I'm going to rebel! Damn them for trying to make a half decent image viewer. Screw them for trying to do some basic multimedia tasks without me having to purchase or download a third parties application!
Here is a clue, hardly anyone innovates. Shocking, I know. Nearly every product you've bought was not purchased from its inventor. Therefore you won't find me shocked when neither is the OS I purchased. Welcome to life, brought to you by humans.