Which Android device did you think all the screenshots looked like? If you were referring to any Android maker besides Xiaomi, then I may have agreed. But we are talking about the one company that has copied Apple right down to the "One More Thing" slide, in a presentation that was all in Chinese no less.
These guys could not be more shameless about copying if they tried. But in case you haven't been able to pick up how they aped Apple. I will give you a few examples.
The Calender App is quite blatantly a copy of the iOS one in look (I couldn't say anything about the feel and how it works). Right down to the colour scheme.
The icons are all straight out of the Apple playbook. Borderless rounded-corner squares with a symbol in the middle. Android icons tend not to have any border around the "symbol". Not even Samsung ones, which have been fairly blatant in the past.
They even have the row of fixed icons at the bottom a la Apple. No, not the usual Back, Home and Menu soft keys on Android. Just a fixed set of four,just like Apple. It looks like they have ditched the standard soft keys altogether.
The music icon app has the same colour as the Apple one. I can accept that a green icon for a phone is kind of obvious, but to have the same colour for the music player app is more than a coincidence.
Check the colour scheme of the calculator app. Again, quite a blatant copy of Apple's.
The camera app has a round soft button as well. Just like, wait for it, the iOS 7 camera app.
Of course, it is not an exact replica, but at first glance, it could easily fool anyone.
In fact, I challenge anyone to put stock Android (KitKat), iOS and MIUI side by side, and it would be quite clear which two are most alike.