I think there's two factors playing into this: first, Germany has had a high level of sefvice quality with trains for the last 15 years, compared to much of th

I think there's two factors playing into this: first, Germany has had a high level of sefvice quality with trains for the last 15 years, compared to much of the world, there's little to improve and second, DB had become a HUGE holding company of many kinds of business endeavours and rail service is not in the states hand anymore, while the company "optimizes" for profit which makes travel aside of high traffic routes become worse and worse and coverage deteriorates.