If you're in high leadership, even just being pessimistic can be a massive morale killer. It doesn't mean that going to HR is the right call but I could see how someone would vent that way.

If you are senior leadership and you find that your org has some people do useless side projects for fun (and tons of money) what delivers no value, your job is to solve this problem by reassigning or firing them.

Facebook VR never needed a new OS in the first place. It needed actual VR.