Because their own option is a bigger mess and can't solve most basic things now due the programmers screwups.Laughs why would you want to use power vr with atom?
Power vr drivers for Windows has been a joke and always been a joke. For example in 2012 atom released it's first semi serious tablet hardware with clovertrail. It used power vr tech and trust me it sucked due to drivers. You were lacking basic functionality like if you had a 1280x800 screen and you did a full screen app it could not strech the screen for an older full screen program thus if the app was coded for 800x600 or a smaller resolution you lost 33% of your vertical height for 1280x800 screen. Only 1:1 pixel mapping was allowed in the driver's. And there were far more limitation with power vr drivers including constant crashing it was just bad. Crappy netbook hardware and the GPU was half the mess. So much better with the switch to baytrail for the Intel you drivers actually work.
Now power vr graphics is good for Intel but atom is dead more or less in Android. Furthermore who knows the future for imagination now that it is acquired by that Chinese company (got a new CEO a few weeks ago). Remember imagination lost half of it's revenue when apple left. Before being acquired imagination did 350 layoffs and when the acquisition was announced they said there was going to be more layoffs with the restructuring. Furthermore before apple pulled the plug on imagination it was hiring away talent from imagination including the coo and the heads of several divisions involving both hardware and software in powerVR. Beside probably the best talent being poached how do you attract and retain talent with things like stock options when a company takes a beating and the acquirer does not see the division as a growth opportunity and is thus more stingy for it is downsiding so both less people and less talented people and the ones who remain have worse moral.
So remind me why power vr for Intel atom is a good idea again?
And even with Raja, Intel won't catch AMD or nVIDIA up on the foreseeable future.
And that's why they should bought Power VR tech in order to make them decent. They were the most advanced of the bunch.