Having taught the 40 hour hazmat first responders class I was surprised they did not have a shower set up for initial decon. A garden sprayer filled with bleach mix would work also if you are sure to collect the residue for disposal.
I have zero training in this area but was able to see flaws. Seems those making this video would have a better understanding.
I wonder, for how many years have government staffing decisions been made according to the perceived politics of the applicant, rather than the competence of the applicant?