Indeed, there is some debate on this topic. Several leading articles in newspapers and books by historians name WWI as the "forgotten war" in Germany. But the criticism of the political representatives is a different question.
Such a discussion starts with any commemoration irrespective if it is WWI or WWII and irrespective of the current government. In general, the political representatives in Germany have some problems with official commemoration in relation to war. They are rather reluctant and cautious, which is a positive attitude in my opinion. They have to find a balance between appropriate commemoration to the dead of the war and the confession of the responsibility of Germany for the war. Either there is criticism because they do not enough or they get unwelcomed approval from the right wing and Neonazis.