The 2nd point is misleading as a major part of this effect was likely due to the novelty of the 9€ ticket and it being "only available for a short time" and the

The 2nd point is misleading as a major part of this effect was likely due to the novelty of the 9€ ticket and it being "only available for a short time" and the COVID lockdowns which had happened before. I.e. it was a "I want to get out" effect combined with a "if I don't do it now I will miss out" effect.