Fully appreciate that, but that is not what he implied on his YouTube review.
Many were under the impression that he thought the M/N was just another variation of the Airsmooth West Country/Battle of Britain class, which simply isn't the case.
With reference to the smaller, latter loco classes being "an old model" he would be correct, as these date from 2001/2002.
FYI, the AS M/N is a relatively new (2017) model with tooling to produce MK1,2 and 3 variants.
The original run back in 2017 was 4 locos in total.Two were in SR malachite livery and two in Hornby E/C Brunswick Green.