Especially when it's already been established that Emil Blonsky also doesn't have the same control issues Bruce had. I mean, you can see the detioration of Blonski's mental health throughout the course of The Incredible Hulk (primarily driven by the version of the Super Soldier Serum that Ross gives him) ...but he's still the one driving when he turns into the Abomination. And that's the real root of Bruce's problem...it's not just that he can't control his anger...it's that, when he Hulks out, he literally becomes a different person. Even when he started learning how to kind of "point" the Hulk at enemies...he still can't control Hulk and he still worries about the damage Hulk could do. Right up until Endgame...he still thought of Hulk as a monster.
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The difference is that the "best possible explanation" is supported by actual evidence.
The "worst possible explanation" is not supported by any actual evidence... just distortions, misinterpretations, and outright lies.