As a professional presenter, I want to have a back-up option for when internet access isn't available.

Internet troubles shouldn't mean my talk is doomed. It's rare these days, but technology can let you down. In the case of no internet, I still want to be able to give my presentation. Even without the quiz features. I'll just ask people to raise hands. It could be an export to PDF format, or a Progressive Web App type functionality that allows me to have the presentation available offline in the browser.