Monopolies are bad because a company is using its complete dominance to reduce competition and create an unfair market.
This is the very definition of normal competition. Other stores could take this opportunity to feature fitbit even more.
As much as it pains me to admit this, the concepts in "Material Design" are much more thought through than Apple's default ios styles. In fact, with a few very pointed distinctions, most of the concepts in material are inspired by what most top-tier not-from-Apple ios apps end up doing.
Because Apple just had the best quarter ever and released new product category developed under Cook's leadership. He first proved his leadership of Apple beyond a shadow of a doubt before bringing any attention at all to himself. Very measured and responsible move, as usual.
Good for him! And he couldn't have picked a better time to do it, either. After the last quarter, even the most backward person cannot deny that he isn't doing an awesome job running the biggest company on earth.