Not so sure the Holocaust was last century and we are already a decade into the next one. I believe Merkel is starting to test the water to see how far she can go in an attempt to woo the moslem vote. This is the real problem that Netanyahu and Israel face, changing demographics in both Europe and in the United States.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Netanyahu's office: There is no Israel-Germany diplomatic crisis