Battlecruiser results depended heavily on employment

Were battlecruisers inherently flawed, or were their failures mainly about how they were used?

Employment mattered greatly: Falklands and Dogger Bank show their strengths, while Coronel and Jutland demonstrate misuse.

Battlecruiser performance depended heavily on employment rather than technology alone. The Falkland Islands showed how speed and heavy guns could dominate an appropriate opponent. Dogger Bank also demonstrated the type at something close to its intended best. Coronel and Jutland showed the danger of putting battlecruisers into situations that demanded the protection of a true battle-line ship.