It's entirely possible that the training was de-facto complete, i.e. they covered all of the material issues in a shorter timeframe, and the remaining bits might just be bureaucratic padding anyhow.

i.e. the nature of these problems may stem from other forms of inefficiencies.

In the work camps on the Alberta Oil Fields, there are literally signs up in front of the all of the pissoires instructing men on 'what angle to hold your penis at' so as to avoid splatter. I'm. Not. Kidding.

Can you imagine the site Engineer signing off on the bathrooms, possibly knowing the 'how to hold your penis' safety posters have not been issued yet?