There seems to be significant opportunity to zig as others zag. Imagine the Intel letter saying "we are going to take advantage of the current hiring environment to scoop up talent, and push forward on initiatives."
They're just trying to get the job done and copying your partner's homework can save time, even if your partner didn't get the right answer or also just copied their partner.
CEOs, on average, don't know what they're doing any more than anyone in most other professions. They just happen to be born part of the ruling class.