It's discrediting valid concerns against card-payments. It's invalidating how great cash is.
It's when the worst person you know makes a good point.
And things now are so Culture-Wars-y, nobody makes solid analyses any more, that when the far-right say cards are bad, everybody jumps to thinking cards are good.
Personally I never use cash anymore, because cards are just more convenient. That being said, I agree with the conspiracy nuts that cash should always stay a viable alternative. I trust the current government and banks enough, but if all goes to shit I want to be able to pay with cash to keep my data safe.