Why aviation battleships solve the wrong problem

How plausible is World of Warships' Yamato-based aviation battleship?

Japanese hybrid studies give it some plausibility, but a carrier-battleship remains a poor answer to a naval operational requirement.

The question takes a Yamato-based aviation battleship from World of Warships as its example. Japanese interest in related hybrid concepts gives the fictional design some historical grounding. A plausible design ancestry does not establish a useful operational role. The objection is that a carrier-battleship hybrid answers a poorly framed naval requirement, a criticism also recalled from Andrew Lambert.