It sounds like you’d like to have the option to create a new user role that has special permissions to view sale reports for a specific product, but nothing else.
Out of the box, WooCommerce doesn’t provide the ability to create new user roles with special permissions. That’s something that would have to be created either through a third-party plugin that offers that feature, or through special coding.
I don’t personally know of any plugins that would provide permissions that are that specific/restrictive. I’ll leave this thread open for now, though, in case someone else from the community can chime in with suggestions.