It is only a one hour so programme so not really surprising that details are often truncated or missed out.
Assuming this is the same remit as The Tube, it's more about the day to day running and people involved at the sharp end rather than the in's and out's of the system.
Like the drivers breaks thing, someone picked on the point whether it was a Union rule or a Legal thing.
The program is more about their working conditions, what they think of them, how it affects their working day, home life, etc.
I failed my driver training at the first hurdle with the concentration tests, could have re-taken them 6 months later, but decided it wasn't a good fit for me.
I'd have to extend the rules about drinking alcohol before a shift to all liquids, with my bladder.