nah man. tweeting hashtags, exclamation marks and website addresses by voice would have taken a long time and frustration
my bet is he stayed with ios 6
i remember a while back people were weirded out by the fact that steve jobs was still on leopard in the age of snow leopard. and using an older macbook pro, when the unibodys were already out.
these guys are using their apple gear as work equipment, not toys like most of us. and, like my work machine at work which is still on win 7 and office 2007, updates and upgrades often come wayyy later than our toy machines.
for work machines, if its not broken, dont fix it.