must be the same kind of data that didn't tell them that half ios7 users can't update to ios8 because they don't have enough space on their 16GB devices.
as you say this is just to squeeze some extra cash from consumers. it's still a dick move though. they'll regret it too. it will frustrate a LOT of users at the expense of a tiny uptick in profit margins.
Half users don't have a PC? You can update even 8G phones with Itunes. More FUD this one was good enough.
BTW, got a 16G 3GS for 5 years and dozens of apps on it, 4G of songs and a few TV episodes. I consume most of my media at home through DLNA and on the net through my own DLNA server on my on network. Will soon get a 6+.