Earlier quoted context omitted.
That's more on simply poor cell service if anything at all though no? The tech even then seemingly worked for you then. Your anecdotal is comparable to saying students at a college not being able to add one another on Facebook in it's early days, because the campus Wi-Fi was on the fritz.
Yes, but in real life blame doesn't matter. What matters is the alternative (a hardwired credit card terminal or cash) would've worked, and this didn't.
Regular bitcoin transaction OTOH would presumably have worked just as well as credit cards.