CEOs are diverse people many dont want to be very public about their work and prefer to be secretive.
keeping the entire public relation on their website. sometimes it has also secretive reasons as they might not operate ina safe region, like in the usa.
Can they always submit an interview anonymously? Can't they? Speaking honestly, if they can link their LinkedIn accounts on the team page, I'm pretty sure they don't care about being secretive.
All the big companies that I have worked for had huge PR and marketing departments. While the CEO needs to be quick on his feet, it's not his responsibility to come up with the narrative for the company; he has much bigger fish to fry. This is why there are case studies and focus groups: the PR department takes this information and puts together some form of narrative for the CEO to relay when he is speaking publicly about the company. I can guarantee that the CEO of Google and Microsoft do not write their own speeches or presentations. Just sayin'
They don't write their own speeches but they DO come on the stage and spit it out. That shows they are concerned. Anyway would you prefer a CEO that cares to spit out the speech or a CEO that hides?