Well, Sub Command, despite what the DW detractors say, is hopelessly out of date in terms of its physics and acoustic engines.
So it doesn't really do much good to compare DW to SC, since DW is a much more sophisticated sim, and as such its more difficult to get the balance correct.
So SC may work "right", but very simplistically. Dangerous Waters raises the bar by several multiplicative factors in terms of the fidelity of its modelling, so it has also proven to be a greater challenge to get working exactly correct.