For the 99% of the viewing audience who
don't work in aviation it was fine, they showed elements of the hidden processes that make a large airport tick. As has been mentioned, the 'back and forth' style of the widespread live broadcast led the viewer to feel part of the going's on and the information presented in a way that was familiar to many such programmes.
Whilst ad-libbing it's normal to make humourous observations, especially as the cardinal sin is to have 'dead-air' where there is no talking between the people on the screen. Large airports are a chore to transit as a passenger, LHR especially, so Ms Humble should be forgiven her candour. I'm happy enough to have a peek behind the curtain courtesy of the BBC
SHJ