The truly weird .au thing is that many merchants take your card and tap it for you. A holdover from the days when people got confused by all the options in swiping/inserting and selecting an account.
Also, while I was looking around to see whether I could find the original article, I saw an article describing that German banks want to eliminate traditional banking cards and do everything via NFC-enabled apps on smartphones. WHAT CAN POSSIBLY GO WRONG.
All the other stores created many opportunities for mistake by staff they badly trained and much confusion still happens today even long after the roll out. Most commonly, many cashiers demand a signature (on the back side of the receipt, where there is an authorisation text for using another payment technology) even though none is needed.
Smarter merchants print muss less: Rewe, which is used in the example, doesn't print receipts at all unless specifically requested by the cashier and then only one which contains both the goods bought and the card transaction data for the customer. A merchant receipt is only printed in case a signature is required.
I worked for 1 week at a Kaufland (you could compare it to Eroski/Carrefour/Walmart) as cashier and I have never seen anybody else except me pay contacless so no wonder they get surprised all the time :)
That seems to happen with bank product branding a fair bit. People _still_ talk about "pass machines" here; Bank of Ireland used to call its ATMs pass machines in the 80s/early 90s, and it stuck, for some reason.