I don't know why this is a big deal.
Don't send silly embarrassing things through company email, whether it's CC'd or not. The request seems reasonable, if he's new to the organization, he wants to be a "fly on the wall" of how things work -- especially in the modern distributed work environment.
Mind, if you're using Slack, or MS Teams, or any of the corporate survel^H^H^H^H^H^Hcommunication networks, he already (should) have access to this. If anything, this is more upfront and visible and should be approached with positive intent and good faith.
If you want to chat golf and set a lunch time with a co-worker, don't CC him.