Far be it for me to argue with John Farley but it sounds like he completely missed the point of TSR2 as BEagle suggested.
There was never any question of it being a fighter bomber as it wasn't part of the design brief. It was supposed to be supersonic at very low level using terrain following radar and the small wing was to cope with what I think was called gust response or something along those lines.
I read one report where the Lightning chase pilot said he had to climb to get out of turbulence and the TSR2 pilot said what turbulence? Job done.