I agree with your sentiments here completely.

"...the virus doesn't live in environments above 56 degrees..."

I believe if you check, you will find that Best Korea used the metric system, and that is not 56 degrees Fahrenheit, but 56 degrees Celsius, which is far hotter than any habitable place on Earth ever reaches.

The video does repeatedly point out that both alcohol and bleach kill the virus on surfaces, and that does seem to have been a common mechanism of transmission so far. I have a spray bottle of bleach solution I will be using hereafter to spray any public surfaces I need to touch.

Thanks!