Depends on the company behind the ATM. What was stated in your article was not at all the experience I had with Bitcoin Well ATMs here in Canada. I've done multiple purchases from Bitcoin Well ATMs now. The flow is easy and simple; I scan a QR code to access my account, then I insert cash, then I press buy. The coin usually gets sent to my wallet the next day due to batching, but I've always received my coins. I've been stacking relatively smaller amounts on each transaction though, usually $500CAD to $900CAD.