Whatever your view of the author, there are some salient points in amongst his polemic. The idea of zoning-off some areas of the river (any river) and restricting fishing, whether it weir pools, spawning areas, snaggy areas etc and designated them as fish refuges is a sound one, imo.
I have been arguing for some time that hard pressed rivers need to have 'fallow' stretches for fish to gain refuge and perhaps even spawn. I reckon if that was done with the Teme we would not have had such a sharp decline in stock. But probably other factors are to blame not least predation.
Caught up recently of a old video of Bob fishing the feeder on the Trent as a young angler, he certainly knows his stuff, I like the bloke, not frightened to utter the unpalatable truth.