I believe the Economist talking about gas as in LNG and the author is talking about gas as in gasoline/petrol, likely pocking at this indicator role for economies state the latter tends to have taken on in wider coverage [0] both because it does indeed impact nearly all transactions even before we talk about individual transport, but also because it is one of the few commodities whose price the average person is faced with regularly. Here in Central Europe, no matter how our vs the US economy does, we have always been paying multiples for our fuel, though that didn't automatically mean collapse even if it feels that way to some.
Point of the author being, higher gas prices can't be directly compared between economies and all that so shouldn't be used to paint EEA members as these economic hellscapes (which always get a chuckle from me), though sudden and severe upward or downward movements could hint at a wider trend.
As someone from one of the DACH countries, it was honestly a nice read and I get their points on concepts like Überweisung, though I will say, if the author was surprised how one opens a Ritter Sport, they should take a look at the official way to open Haribo [1]. Then there is Mannerschnitte [2]. Also, yes, publicly founded mental health care requires significant improvements.
[0] https://www.investopedia.com/financial-edge/0511/how-gas-pri...
[1] https://www.youtube.com/shorts/a45SHoe6fPM
[2] https://www.youtube.com/watch?v=vNmsiuGe4_s