If you're a CEO or a senior executive, I personally would expect that you're 100% capable of responding to criticism without losing your mind or spending $5,000

If you're a CEO or a senior executive, I personally would expect that you're 100% capable of responding to criticism without losing your mind or spending $5,000 for a lawyer to send you some copy-pasta of "We take your feedback very seriously and will consider your opinion." and then never doing anything. I'm not suggesting the leader be the one to personally go and fix the problem, but they certainly should have the communication skills to navigate it and organize a solution.