I'm not going to claim to be an expert on this, but I thought I read (or saw somewhere in a documentary) that they found gaping holes in the ship from explosions. IIRC they said that the holes appeared to be from internal explosions, like scuttling charges, versus external explosions, like torpedo hits. I think they also said that the holes were in the right place for the scuttling charges to be doing the damage. For this reason I voted for the scuttling charges, strictly for the definition of "sinking," but as to its actual destruction: of course the British. Sure it wasn't sunk yet, but you can be damn sure it was no longer an effective weapons platform.
Six of one = 1/2 doz. of the other.
Interestingly enough, I saw another documentary about the dreadnought/battleship class. The most interesting thing that I took away from it was that some study was done at some naval academy somewhere (sorry to drag everyone down with specifics)
and they found that the battleship was one of the worst military investments ever made.
Why? Because of all the naval ships ever commissioned, this class of ship has had the least amount of use of all naval ships ever made. Sure they made a psychological impact, especially when it came to the grandeur of the British Royal Navy, but as far as actual military applications, especially ship v. ship, Jutland and Leyte maybe. They really didn't have too much use except to shoot those big guns in ground support ops.