Notwithstanding the point that the programme is probably intended to be filed under "entertainment" the BBC's remit is also in inform, and this would have been an ideal opportunity to do just that on a somewhat higher plane (pardon the pun). Surely something of GCSE level might have been more appropriate than "key stage 3".
Instead, along with other BBC programmes, such as "Breakfast" and the weather forecasts, everything has been dumbed down to the point where it wouldn't be out of place in C-Beebies.
Curiously, the BBC does a pretty good job of natural history, historical documentaries and the like - but give them an commercial aircraft and suddenly the whole thing seems to go to pot.