[version_five]

The biggest risk is that people will misinterpret your slides without your voice over, or that they get ignored because people have lots of competing priorities.

Without an NDA, you should only be sharing slides you're comfortable sharing with the world anyway. People can screenshot them, e.g. if they want a copy.

I would push hard for an opportunity to present the slides yourself so that you can give the context and respond to people's reaction. You are much more likely to move forward if you can be present vs. just providing the slides.