The current government constantly violates the consitution, they are still trying to implement Vorratsdatenspeicherung which was ruled illegal by the constitutional court. The former government tried to change how elections work with the goal of kicking out opposition parties. And for the current elections there still wasn't a needed re-count because the organisation that needs to approve a re-count is the current government themselves. How is any of that in line with the consitution? It's ever only an argument when it's the "side I don't like".
It’s funny when people blame opposition for things regime says they would do if they come to power, but tolerate all autocratic tendencies of the current regime. The self-elected one, as you point out.
Edit: self-approved is better term, since without recount of votes we still don’t know if current regime has a majority.
