Why Venator dorsal hangar doors fit a carrier-first doctrine

Are the Venator-class Star Destroyer's dorsal hangar doors a useful feature or a dangerous waste of space?

They are essential to rapid air-wing launch in the intended stand-off carrier role, although close-range fleet combat exposes their risks.

This is a science-fiction design answer, not a claim about a historical warship. The dorsal doors let a Venator launch most of its strike wing quickly, making them central to the carrier role for which the design is optimized. The Battle of Coruscant instead forces the ships into close capital-ship combat because the Republic's heavier line units are absent. Armored and shielded doors reduce the vulnerability, but the scene still demonstrates the cost of using a carrier in its secondary front-line role.