Very cool vid!
I think production work means most residential work where work orders are expected to be achieved each day. I think its most applicable as a decription for the Barletts and Daveys and big companies like that where things tend to be more 'cookie cutter'.
I worked for a small company and we did a variety of jobs, big and small, with no fancy equipment except chip trucks and chippers.
Still expected to get the day's quotes done. But the boss knew that it wasn't always going to turn out that way. Circumstances and safety change things sometimes. It doesn't mean the fastest rate possible, but what is expected in that market for the kind of work being done. The culture around that varies by company.