In 2009, Jobs was on leave from January to June with Tim Cook in charge. There was a dip in the stock when it happened, but it did just fine during the period of his absence (if you define "just fine" as going from ~ $82.00 to ~ $142.00)
I think after it all sorts itself out, it'll be fine.
I'm just not sure. Analysts have generally been clueless when talking about apple, and I don't see that changing. And now they're saying that things would be alright for 6mo to a year, no matter what. That's a code for: I'm selling first thing.
They'll sell today and tomorrow they'll see it's lower, think it's a bargain and all buy it back... These are not bright people (or rather they often are demonstrably very bright people who just hide it well with their words and actions).
IMHO not the best example : If they can sell today and buy it back lower tomorrow, then that's pretty smart. They own the same thing, but have $$ left over.
If that was their intention then yes it's smart but it seems it's rarely thought out that far in advance. And when by "that far in advance" I mean "tomorrow" it's a bit scary.
I think after it all sorts itself out, it'll be fine.