For anybody wondering, why DB being able to meet minimum service is so incredible, it is rather simple. Both passenger and freight demand in Germany have grown over the last decades. However the government did rarely invest in new track or even repairs of old railway infrastructure. Basically Germany needs a high speed rail network parallel to the exisiting slower lines to meet demand, as well as some additional freight lines. Without that DB has no chance in hell to actually be a good rail provider.

So the fact that they can somewhat meet demand is an incredible achievement by DB.