No, the answer is certainly not correct. Even worse, it's purely speculative and shows that the auther doesn't like MS.
I think it's not about the OS, it's about the drivers. If you would trace the power consumption properly my guess would be that the WiFi module is the culprit. As the hardware is the same, the driver must be the place, where Apple has the edge.
Mac OS X is much better than Windows 8 on the same Apple hardware. I think the key to Max OS X's efficiency is clearly the optimised drivers. Nevertheless, MS has to step up, good for us!
Unfortunately the author clouds the facts and his mostly correct findings with his emotions. What could have been an interesting reading remains a rant.
I like the cleaner UI design and new fontset a lot. However, the background blur is distracting and counterproductive for the overall clean look. Maybe they just tried to much to top / set themselves apart from the Metro UI somehow?
Besides all the bad things and malicious behaviour of the big players (yes, all of them) the internet has brought to us, there're still sites that have changed the world to a better place. Especially StackOverflow has contributed largely to increase the equaly of opportunities. Due to the lack of basic education and access to hardware and the internet not yet everybody, but a massivly increased number of people can become great developers. At some point you need help from the experienced. Books and online documentation don't help anymore, that's where SO comes into play. It made me a 2-3 times better developer and kept my spirit up when I couldn't solve a problem by myself.
Android is partly open source. It's neither open nor closed in the same way as gray isn't black or white.
Google has all the right to change the openness of it's software, but generally should be truthfull in their marketing. I haven't lately found them promoting Android for being open source, so all we need to be aware of is that Android, iOS, WP, BB are not open and are of course made to create profit for their companies from their users.
I think it's not about the OS, it's about the drivers. If you would trace the power consumption properly my guess would be that the WiFi module is the culprit. As the hardware is the same, the driver must be the place, where Apple has the edge.