What's significant about this is I hate it. Every venue or flight that just texts/emails me a picture of a barcode has worked fine. Now they've invented a flakier solution to an already-solved problem, probably to further iPhone lock-in.
Southwest boarding passes for example, they used to give me a PNG. Now it's the wallet thing that displays... a PNG. Oh look at that, my wife's iPhone is too old to use it, that's Apple's way of saying she should go buy another.
I’ve been in queues behind people who can’t find their tickets in their email, or whenever they saved it, or can’t get an internet connection to open their email, cloud drive, or whatever. So it doesn’t seem like a solved problem for everyone.