Chinese Restaurant in 12 story + office building-Just cleaned?

We were called into a job that was having major leakage issues yesterday morning. Turns out the system was just cleaned Sunday night(the night before) by a company with various claims on their web site that we will let you all decide what is true or not.  The pictures of the "completed" job along with the hood sticker are shown above. I have blurred out the name and number of the company and do not list the name here to protect the guilty! Here is what they they state on their web site and my comments: 

-Using Certified Hood Technicians(They are not listed with IKECA so where are they certified?)

-Offering email, or phone scheduling and follow up

-Completing Our Hood Checklist at Every job (Must have forgot about the ductwork checklist-see attached pictures just taken)

-Offering Digital Photos of your Exhaust Hood System(Note they left the work "Clean" out of this statement! I wonder if they sent pictures of these areas to the customer?)  

-Retesting our Hood Technicians every six months (What test? There are no certifications I know of require 6 month retests or even offer them, maybe they should retest their crews on what clean is!!!)

-Using the most up to date cleaning technologies (Hmmmm- better start using old technologies again as your up to date ones seem to be leaving an awful lot of the grease behind!-See pictures above) 

 Sorry if I seem facetious , but I cannot stress this often enough that words are only that. This job is in a 12 story office building with hundreds of people in the building during operating hours. If this caught fire, it is doubtful everyone could get out in time. The duct travels across the building 100' of so to another horizontal outside the wall to a 12 story vertical stack to the fan on the roof. WOW!!  You must look yourself or have someone with a long track record of inspections handle it. Also, check what the company's certification(s) really are and either go to the certifying body's web site or call them to verify. We did contact this particular customer and the comment was simple. "They are half your price so we will stay with them" Obviously out if site is out of mind for this chain and the safety of all their staff, their customers, and all of the other tenant's staff is not important to them.