This Apple cult thing can get ridiculous... stop speculating! nobody knows the reason... but most importantly, who cares! even in the far fetched case he got canned, which I seriously doubt since it'd be a PR nightmare for Apple (thanks again to the sentimental fan base), it's not like Ive has the world monopoly on design... and, in case you haven't noticed, it's also not as anyone there is/was infallible....
It's just phones, tablets, computers and a bunch of code lines, people... And they make them to make money. It's just a business, and everything they do has to do with money. As important as they are for lots of us as everyday work/play tools, they're just that: tools. And thank god, Apple isn't the only one making them. At the speed things develop, we'll have new, different, more useful tools in the near future, which possibly won't even involve Apple or any of the actual shops.
Relax!
If you really want to worry about something important, worry about global warming, global income inequality, money in politics, drone warfare, cyberspying.... anything other than a picture missing on a corporate website!
In other news, someone moved a chair where Steve Jobs sit once...