It is really no surprise that the EU Commission is now stopping the infringement proceedings against Germany that opened in connection with the Karlsruhe ECB ruling in the summer.
The conflict instigated by the Karlsruhe judges, which ultimately did not concern the European Central Bank's bond purchases but a dispute over competencies between the highest judges in Germany and the EU, has been resolved in a similar way to the previous one in Germany: with a truce.
The EU Commission has been satisfied with the listless German reaction to the opening of the procedure.
Even if a number of content-related questions - especially the relationship between national and European law - remain unsolved, the Commission has acted politically correctly.
In view of the current serious constitutional conflicts with Poland and Hungary, it could not afford to bring a fundamental dispute with the largest member state to extremes.
This cannot be resolved before the European Court of Justice, but has to be dealt with politically.