I did acknowledge the technical accuracy of your statement, implicitly, before moving on to something more interesting. It's just too banal of a point to spend a full sentence on. Of course someone is demanding these slides. Feel free to mentally amend my original claim. Sometimes I write in a humorous, rough way, maybe it isn't for you.

Don't worry, I don't hold all managers in contempt based on my own limited experience in my particular org of my particular company in my particular industry. I'll make sure to update this post if I come into contact with ones whose contribution I respect more.