Basically.
Apple most likely projected several goals.
More people off iPhone 5 and 6. this target missed I would wager. I like many am on 6 and see no reason to switch. my 6 will run till it dies and apple stops sending out replacements.
IPP probably had higher goals for sales I'd wager.
Not enough hungry for the 2016...and with some lackluster releases prior people are going man...lets roll the dice on this 2011 or 2012 or maybe 2013 one more year. C.mon baby girl...give daddy/mommy another year.
Apple to me likes to see high adoption rates of new tech. Now they may may be making some mad bank...issue is they seem to me for development reasons want the "legacy" stuff gone. Makes those end of life calls easier when they can run the numbers and go well we are putting off 5% of our use base.
5% can grumble, bitch, whine complain and moan...if they leave oh well. Lots of legacy running around....there in staff meetings is the debate of the day. We have for arguments sake and purely out of thin air 25% on some old stuff.
Do we EOL this this year...or hope this year better for refreshes. Since 25% gets problematic to to tell and go pound sand, **** and just accept and move on. When you meet goals. get that legacy put out to pasture this EOL decision gets easier.
Also for some design calls I'd wager these goals made to justify their planned success. So you want to pull 3.5 jack? Okay....risky move, dare we say a gamble. Tell us Tim (said the boards and such...joys of public traded company...even the CEO has people they answer too)...give us a number to show your gamble has some credence in our 2017 meetings.
With a missed goal...one possible outlook is this was not the seller he though it was. Means in theory in some conference room some of the board will be going yeah...Tim, you guaranteed X units bought. So wth happened here?