To be clear, this isn't a product called "Presenter", this is a person who works for Microsoft who switched to Chrome during a presentation. Nothing to see here.
If he'd tried it in Firefox next I think everyone would have been distracted by the question in their heads of "does it not work on Chrome?".
Or maybe be they would had thought “Wow. Finally someone who does proper cross-browser testing and not just defaulting to Chrome. How refreshing. Maybe there’s hope for the web after all?”