iPhones are always mentioned, but this must apply to iPad Mini, iPads too?
Whenever these articles are published it never make any reference to iPad Mini, iPad 2/iPad 3/iPad4 etc.
Just from the way my existing older iPad Mini, older iPads now respond, it's pretty clear the devices have been throttled at some point by an Apple iOS software update.
They've become unusable, with very obvious delays to open Safari, or the browser just resets attempting to open a page.
It's all a very different (slow and unusable) experience to when the devices were new, and that's with every conceivable graphical enhancement feature turned off, to speed them up.
i.e. Was this done specifically to iPhones running iOS, or all iOS devices including iPads (which seems likely), which means it's a much bigger kettle of fish Apple are denying they slowed.