That works only on lower tiers. On tiers 8-10 forget that unless you have a German BB for the overpowered secondaries and you are angled properly in order to avoid torps. Even though, a proper team of Japanese DD's can outflank you and do a synchro launch, the torps will do criss cross pattern so you have to eat at least either side. Russian DD's under 3-4km have those ultra fast suicide torps that you have no time to avoid (but a competent Russian DD captain will just stay at range and dodge your shots while raining fire upon you..). At these levels what you need is a spotter, usually a DD on your side that's stealthy enough or can smoke for you and the team or a CA whose role is to hunt DD's.. but again, sitting in smoke is risky enough with a DD, do not ever stay in there with a heavier ship (i love torping smoke clouds.. had a lot of kills that way).
Well, yes, alone against two or more DDs it is futile, but again, anything is. Against one, at least it is a chance.
I just won a Tier 8 match with the Fuso. Towards the end me and a DD managed to push towards the enemy base. There was an enemy DD spamming torps, took it out with a lucky salvo (2 APs = 8000hp hit). Then a King George - I told the DD to stay in my cover and torp him while I was taking him head on. Indeed he sailed just behind me and we sunk it for good.
And that was only the second match today when meaningful comms payed properly off!
Yeah, I only sail past clouds as it can be a death trap.
What I realized, that WoWs is about skillfully balancing on a rock-paper-scissor game. If as a BB I can decimate the enemy CAs, then the DDs can do their disruptive job around BBs and it comes to a full circle.
I love this game.