There is also an unspoken bit of realpolitik there: Israel is still an ally to Germany, Palestine isn't, Iran isn't, Hamas isn't, etc.
So this is actually a super-nice position to be in, you can support your ally no matter what they do, while still looking contrite and morally superior by pulling the "we are Germany, we are not allowed to have a say in the matter" card.
So this is actually a super-nice position to be in, you can support your ally no matter what they do, while still looking contrite and morally superior by pulling the "we are Germany, we are not allowed to have a say in the matter" card.