I understand you guys might be disappointed, but the devs already said (and i 100% agree with them) in the Community Q&A:
''Our focus is to create the perfect German submarine experience, with the highest detail current technology allows in real time. Silent Hunter is not about surface ships, is not about strategic decisions. What truly means Silent Hunter is life of a captain, his boat, his crew, a desperate battle for survival they themselves may not understand or agree with, sinking ships, live a drama on the high seas.''
To me they worded it perfectly!
Maybe Ubisoft Romania could specialized themselves in Naval Simulations. Maybe you could get what you want in the coming years.