Again, Apple's sales may not be slowing in those regions. They could be enjoying fairly large year-over-year sales increases and still be losing share if the overall smartphone market is growing faster than they are and others (Android) are capturing most of that growth. We simply do not know. What we also do not know is: what kind of profit those other phones are generating and who they're selling to. If they're glorified feature-phones with razor-thin margins (as is often the case in other regions with explosive android growth) every indication is that Apple simply would not care about that market any more than they care about the lower-margin segments of the markets for laptops, desktops, media players, tablets, etc.
So, yes, market share could be part of an interesting larger story. But we have absolutely nothing to give context or larger meaning to the market share number. So the number itself is simply useless. Particularly as justification for some assertion that based on that number alone Apple is going to change its long-standing and very-profitable approach.