A Dutch battlecruiser as a risk-fleet weapon

Would a fast Dutch battlecruiser with six 14-inch guns be a plausible and useful design?

Yes. It could overmatch cruisers and compel an enemy to commit scarce capital ships against it.

The proposed Dutch battlecruiser's strategic value lay in the burden it imposed, even if it could not defend the Netherlands alone. Its guns and speed would make ordinary cruisers inadequate to hunt it. An opponent would have to detach battleships or battlecruisers, raising the cost and complexity of intervention. This was a risk-fleet strategy adapted to a lower medium power.