That observation only applies to US carriers. . . . . .. the British armoured carriers could take massive damage and still stay operational. At Okinawa the Kamikazie's literally bounced off them. In Mediterreanian the Illustrious and Indomitable took numerous hits that would of sunk any US carrier - and returned to war time service in a few months. The post war US 'Midway' class was modelled on the design principles of the Illustrious class. However, not withstanding the observation that more armour is better. The escort carrier as a commerce raider idea was never tried. The whole point of the German commerce raiders was that once cornered the larger number of British ships would always finish the battle. Escort carriers are cheaper and easier to build, and in numbers could of done far more damage than 'Pocket Battleships'