I wouldn't say A-B gets a free pass, but certainly they did more things right than Premier Parks, Six Flags, or Cedar Fair. They built the park carefully, sensibly, without putting in outrageous investments that couldn't be supported by the gate. When they realized a stand-alone seasonal marine park couldn't support itself, they tried to buy Geauga Lake: a move that would have been the exact opposite of what SF eventually did, and which in A-B's careful management hands would have been much more likely to produce a combined park that would show a profit.
Then, when they were spurned and decided to get out of the market altogether, A-B didn't engage in a scorched earth campaign like the Romans sacking Carthage. They actually sought suitors to purchase the park. They recognized that they could profit by selling the park intact, while still leaving an asset for the community to enjoy.
Those are enough reasons for me to go soft on A-B.