To date, this has been offset by the fact that iOS devices have much longer average lives than Android devices, and are routinely resold one or more times.
Apple was a very successful company selling Macs, with their low market share, I personally feel the same can be said with iOS too. Apple has proven you don't need majority market share to still have a controlling position in the market.
That may be but that's not the claim made in the original article. He claimed that iOS market share would increase, which hasn't been the case for a while now, so it demands some justification.
http://www.macrumors.com/2016/06/02/meeker-2016-internet-tre...
So market share is declining.
The reasons he gives for Apple's market share to increase are not new. They have been losing ground despite the conditions he describes. If we wants to argue that Apple is going to reverse this trend he needs to give new reasons.