Do the british army still use flail tanks as they did in WW2?
“Roadside” is the giveaway here, bombs tend to be planted in banks & mud brick walls as often as they are in the ground – this gives far better antipersonnel blast patterns. Furthermore Taliban tactics could easily be adapted to meet such a threat, large (multi-155mm shell type) IEDs designed to destroy AFVs could simply be buried a foot or so deep & the aerial run deep underground only to surface in a safe position. In Afghanistan such a device would be a maintenance nightmare, flail tanks were designed to operate in sand or at worst soft soil, unmetaled but still dense & rocky roads would destroy the flail arms after only a few kms. Not to mention that you’d have also completely buggered the road…