A big blunder by Command would be "Slaying Ravana".
Really? They committed a destroyer, a corvette, at least one (more than one?) other warship, and multiple fighter and bomber wings.
Yes, but not when they wanted to deal the destroyer's death blow. I mean, seriously, what kind of blunder resulted in heavy bombers attacking without a fighter escort? That's basic stuff they missed, and you sure as hell needed a fighter escort for that mission on higher difficulties. Well, it's do-able, but it'd be a little easier with a competent escort. And I mean, it's a FRAKKING DESTROYER! It should've turned around and given that Sobek a wake-up call, and on that note, I don't think it sortied any bombers to deal with it either. Really, it's a major ship, and being taken down by a wing of bombers, Serapis fighters, and a lone corvette that was barely trying is shameful at the least.
If computers were more powerful at the time, I see no reason why it shouldn't have turned into a larger engagement. And when the Ravana realises it's getting its ass handed to it, it should just power up the drives or call in some backup.