iOS already has much lower market share than Android (when it comes to phones) but:
1.) Takes the majority of the smartphone market's profits and
2.) Provides the most income to developers (by far).
This means that the platform is secure and if it did fall to a 5% worldwide share, it would not be marginalized. As long as 1.) and 2.) are true, what does iOS's market share matter to Apple or iOS users?
High profits is like a flash in the pan metaphor. It will give you an early advantage, but for the long haul, your profits will simply dwindle. Market share will win out. Apple own history has proven this fact with its Macintosh OS and hardware ( niche market, high profits, higher software cost ). It was hugely successful in the short term, yet today it's still below 5% worldwide. It really hasn't gained much in 27 plus years and will stagnate again. iOS is following the same path.
Really the point of this thread is the misleading report to why these researchers are bundling these numbers with Android and iOS. It's wrong. It should be segregated, even if the facts show the true declining numbers of iOS activations.