I see the OP/video as a public service effort. If you actually follow the steps laid out and ruin your mask you should not be involved with scuba diving.
Based on the fact that more than one of us missed the joke, and more than one of the comments on TY missed it as well I would say future clients that see the video will surely be limited to those that only fit your criteria for participation. Could be why I'm not in marketing, however.