On the one hand, I share your doubt, which is justified in the face of all the deceit and mismanagement that Merz in particular and the CDU and CSU in general engage in and their disdain for the public good. On the other hand, the fact that the Sovereign Tech Fund / Agency survived the German budget crisis gives me some hope that it will at least stay.
I think this
charadeparade is both a play to his MAGA base and a sort of loyalty test to see who in the military goes along with him.