As much as I know only the planes used for the Bundeswehr (the MRT to be updated to MRTT) are painted in the grey livery and thus will also stay that way and the ones left in the white livery will probably also yet be painted grey. I think only two planes (the VIP A310's) will get this new "livery".
What you said is exactly what the problem is. It is the Germans who have a problem with leaving the past behind us and not the other Nations.
But what do you expect if children don't even learn the national anthem in school nor does anybody teach them respect for the flag.
A few years back I was in Denmark on an European boyscouts camp and the Swedish delegation had made a fence around their area made of little Swedish flags and it was only Germans that would walk past and rip them off. All children from all other nations had respect for their flag[-fence] but not the Germans. So this is just a German problem going first against their own and than also against other nations [flag].
Wow, should have written this in the non-aviation forum.