I agree with this statement!
Although I managed somehow to have on average some 10k more damage than wows-numbers states for the Pommern, I have a winrate of only 38%. Which baiscally means me playing that ship is bad for everybody in my team. I think the reason I have more damage is that I try to play her according to her 'Pros'. And when getting in closer range to use her offensive 'Pros' some other players may try to join my pushes and they get wrecked like I do. Then I did some reasonable damage but we are going to lose the game. I made some notes for a series of games I won with Pommern, these are games with very little damage dealt and tanked. So its games which my team would have most likely won without me...
Actually I dont want to blame the ship itself too much, since I think its - neglecting the dispersion of the main guns - a good ship. Its more the style of play in T IX and T X battles. It has become like World of Tanks. Players go to some island to have their flank protected and then just face bow on the enemy. Its not only one player doing this, often its like half the team, excluding DDs. And this is a scenario Pommern cant face. Like an Alaska is going to wreck me in such a situation. With every salvo from her I eat 5-10k damage, even when poperly angled. And in return you can congratulate your crew if they manage to land one hit at all. But here we only talk of a hit, which is then usually an overpen or a ricochet. I also tried to take some notes on that, in my games its about 1/3 pens, 1/3 overpens, 1/3 ricochets. In more dynamic battles, you can take advantege of her 'Pros', but in these unfortunately static battle types you are srewed. Because often it is not possible to just fight at a different place. Push forward, you get focussed and die very fast - try to retread, you get slowly burned down while you are out of range in which you can do effective hits - try to go somewhere else which forces you to go broadside for only a short time, goodby!
Improving the accuracy of her main guns would not change the problem of this static-game-style (which I personally dont like, but this is just my opinion and I am totally fine with everybody enjoying to play like), but it would make her a little bit more compatible in such scenarios...