Having a Mold remediation or handling plan is very important because often when cleaners in our industry are shown mold by the customer. A large group of us (esp. in Colorado, where we don't see a lot of mold) often misdiagnose the situation and treat mold as if it were a stain that needs to be removed. 

Improper handling of mold can lead to serious illness and even death. So treating it like its not serious is like treating peoples health like its not serious. Which is just dangerous. Proper training programs like the ones offered here. Are a great way to have a plan in place to help protect you and your customer when dealing with mold.