old Android OS not as big a deal anymore
Having an older version of the Android OS is not as big a deal as it used to be. Now that the Chocolate Factory has moved a lot more of its value chain out of Android proper and up into Google Play Services, they can update a lot more of it remotely, even on devices that have been abandoned by their manufacturers.
iFanbois like to talk about Android "fragmentation" but I have yet to see something that won't run on my four year old device.