Wow! Orlando is only 60 miles away from here, and I have heard of that roof cleaning company before!
I think they used to be called Advanced Roof Cleaning of Orlando Florida.
Notice the Hat he is wearing in that video ? I think it is kind of an Orlando Roof Cleaning thing, because I have seen other Roof Cleaners from the Orlando area, wear those hats.
If the company in the video is really Advanced Roof Cleaning, they have been around for years, maybe even as long as us ?
I think they changed their name to Advanced Roof Coatings a few years back, but I may be wrong ?
Regardless, IMHO, it is not the best idea to use Elastomeric Coatings on a shingle roof.