Why España remained a battleship

Could the España class be considered the original supercruiser or a monitor rather than a battleship?

No. Its eight 12-inch guns and battleship design make it a dreadnought despite its small displacement.

The audience tests whether an unusually small dreadnought should be reclassified as the original supercruiser. The label does not fit because España was designed and armed as a battleship. A monitor would normally have much shallower draft and fewer heavy guns. Displacement alone does not determine warship type.