This is the same line of reasoning that created the “Allies actually didn’t try very hard to assassinate Hitler, because they realized he was a really bad tactician” conspiracy theories. Basically, the reasoning is that while Hitler was charismatic and had a massive cult following, he wasn’t actually that good at making tactical decisions in war. So the allied powers didn’t really try very hard to assassinate him, because they feared an actual competent ruler who would potentially take his place.

Basically, “never interrupt your enemy when they’re making a mistake.”