Show me this PC that required an update to boot.
I bought an Acer Aspire One Netbook a few years back. on First boot, before I could even interact with the OS, the PC took 45 minutes of updating and installing it's bloatware. Then, and only then was the computer interactive.
it's not completely unheard of by 3rd party manufacturers such as Acer or Dell to have a brief pause as such.
All manufacturers handle this process differently.
For example: my Note II upon initial configuration. you know, the link your google part... did NOT in fact require me to update right away before use.
only after i connected, was online, and able to use my device did a notification pop up saying there was a system update.
if this was an Android specific user experience you are referencing, than you'd be correct. But it's not. It's a wholly vendor provided experience.
But lets be honest.
if on first initial use, where you're likely sitting in your office or at home on the couch, playing with your shiny for the first time when taking it out of the box, and you cant spare the 5 minutes for initial setup and updates, you have other serious attention span issues.
Never mind the fact that Apple isn't some wonderfully perfect experience either. who doesn't remember opening their wonderfull new iOS device only to be greeted with "please connect to a PC" where you have to have iTunes setup, with an iTunes account already created and registered, where it in fact, did force you to connect and update.
but no. When Apple does it, it's "amazing user experience and to give you the best experience ever!" but when Android does it it's "the worst thing ever that delays me from using my device for 5 hole minutes, how dare they evil scum of the earth!"