Showing Jutland's battlecruiser losses before the war

How might the Admiralty react in 1912 if shown the destruction of Invincible, Indefatigable, and Queen Mary at Jutland?

It would likely accelerate stronger fast capital ships, keep early battlecruisers out of the line of battle, and impose much stricter ammunition-handling discipline.

The answer does not assume the Royal Navy would abandon speed or battlecruisers altogether. Instead, it would build more capable successors while treating the first generation as battlecruisers rather than substitute battleships. The most immediate procedural lesson would be to eliminate unsafe ammunition-handling practices that allowed a turret hit to propagate toward the magazines.