The main East German problem was lack of jobs, not lack of skills. And difficulties in re-training is a tendency of demographics under-represented among refugees, especially the current Syrian ones (older workers, the least skilled workers, alcoholics).

Nahles says pilot projects for fast integration into the labour market have failed for the vast majority.

Where did she say that? Not in the linked article.

She proactively said that unemployment will be higher next year.

And she said that won't be the result of failed labour market policies but the sign that there is an on-going task [of re-training].

_{*Lunatic*, n.
One whose delusions are out of fashion.}