It looks like the same product.
You can wash off the Reptile Spray just by soaking the snake in water. It doesn't persist long anyway like the Frontline does.
The PAM is for use in/around the enclosure or rack to kill mites during the off-snake phase of their life cycle. You spray the tub/enclosure, newspaper substrate, and hide with it. Don't spray the water bowl. You don't put the snake back into its enclosure until all of that stuff has completely dried.
Note in the video he did that with a snake that just arrived. It should be SOP to treat all new snakes for mites until you are 100% certain they are not carrying any. If you treat the enclosure with permethrin the day before the snake arrives, and use the Frontline or Reptile Spray when the snake comes out of the shipping box, you should stop an infestation before it becomes a major problem.