My Mistake!
With the picture on the story, I thought this was an article about the queues for the iPhone 6s!
2 publicly visible posts • joined 25 Sep 2015
I have an iPhone 4s, which although getting on a bit, has never given me any problems updating any IOS. I can only assume that the people complaining are trying to run the update direct from their devices. It is to be honest a stupid thing to do, with far too many things that can go wrong. To anyone doing this, the simple answer is don't! Connect to your laptop or Mac and run any updates through iTunes. If something does go wrong, then re-imaging is simple.
After all things could be so much worse, and you could have a Windows or Android phone, so stop moaning.