This sort of shift would always cause a bit of disquiet, but it's where live events have been moving towards for some years, I can't remember the last time I actually had a paper ticket for a gig, and I've been using my "print at home" QR codes on my phone at City for at least three years. It was only a matter of time before it was implemented at City, and hopefully there aren't too many teething problems, and the FAQ seems reasonably thorough. I hope the people on here who are anxious about it figure it out and those who aren't are able to help you make sense of it before the season starts.