I’ve heard this before. He also didn’t trust the troops because he knew that a lot of them intensely disliked him. It didn’t matter much anyway because most of his “visits” were meticulously scripted for maximum effect. My father’s bomb group in the pacific had a visit from the “living legend in his own mind”.
I've heard this before as well. If you have evidence of it that goes beyond hearsay, please post it. I'm confident you can't.