Those magazine explosions were a direct consequence of the poor cordite storage practices that the british employed...:
I disagree. The German practices were no better. The main difference was in the chemical properties of the different Brit and German propellants. The Brit propellant burned very hot and very quickly even when unpackaged (think det-cord) whereas the German propellant did not. This violent burning of the Brit propellant created huge overpressures in confined spaces, which were more than the surrounding structure could stand. Thus, the Brits blew up when they had internal propellant fires, but the German ships didn't.
At Dogger Bank,
Seydlitz had both aft turrets engulfed in a propellant fire that involved some charges in the magazines themselves, not just those en route to the guns. The total was over
6 tons of propellant. Yet the ship did not come close to exploding, because the fire wasn't quick and violent enough for that. It didn't even displace any of the structure. If German propellant would have caused ships to explode, certainly Seydlitz would have gone kerboom.
OTOH,
Lion at Jutland had just 8 charges (all in approved, shielded waiting positions) ignite from a smoldering fire from an earlier hit in Q turret. The violence of this combustion seriously deformed the magazine bulkheads below decks, even though the blast (not fire, but blast) was partially vented through the missing parts of the turret roof. If Q magazine hadn't been flooded already, this almost certainly would have blown
Lion to bits, because the magazine doors and scuttles weren't flashtight from the working chamber side.
So why did
Pommern blow up? The best guess is that this was due to shells, not propellant. The shock of the torp hit (in a ship with no torpedo bulkheads and 2ndary magazines next to the skin all along the length) probably armed some fuzes, which were then triggered by being tossed about. It should be noted that
Konig nearly suffered a similar fate from a freak shell hit below the belt that blew through the torpedo bulkhead and the coal bunker inside it, and then destroyed a 2ndary magazine. Charges ignited but the flood of seawater quenched them. After the battle, however, some armed shells were found buried under the wreckage and coal.
Thus, IMHO, Brit ships should be much more likely to blow up than German ships. And not just Brit BCs and ACs, but the BBs as well, because they all used the same propellant. If circumstances had permitted a real battlefleet engagement at Jutland, I'm sure 1 or more Brit BBs would have blown up from propellant fires. German ships could blow up as well, but it was a more difficult to make it happen because it seems to have depended on heavy shock reaching the magazines, and the dreadnought-era ships were designed to avoid this problem as much as possible.