Just can't resist this (not detracting from your point, bnm, just the juxtaposition of Dean Forest Railway, and Beeching). I travelled some years ago on the DFR, Lydney Junction to upper terminus and back, by DMU -- en route, overheard an elderly fellow-passenger attributing the closure to passengers of the line north of Lydney Town, to Dr. Beeching and his axe. An interesting illustration of the way in which Dr. Beeching -- who somehow sounds just so very right for his role -- has entered the public consciousness / vocabulary, as a slaughterer of lesser railways. The Severn & Wye rail system -- joint GWR and Midland -- north of Lydney Town, was closed to passengers in 1929, when Richard Beeching -- the future Doctor -- was all of sixteen years old.
Odd that I, who half-a-century-plus ago was passionately wishing that Dr. B. might be hanged, drawn and quartered -- now find myself sometimes wanting to defend the poor old deceased sod, from accusations of stuff of which he totally wasn't guilty !
I said that the DFR was imitating the run down nature of a Beeching era branch line. I made no comment to say the good Doctor was responsible for the closure of the line.
I don't think it's intentional that the DFR are saying "this is what rural branch lines were really like in the early 1960s", it's just the impression they're giving.