You are debating the wrong flight here. The first flight, coerced, illegal or otherwise, landed uneventfully at the intended destination.
What beggars belief is that having already completed a flight that was marginal (to put it very, very charitably), none of the two pilots bothered to check the wx back in Blackpool or to uplift fuel. No matter who the PIC was (and the AAIB report is quite clear here, contrary to what some posters claim), this is madness of the highest order.
One wonders how these two guys got their licenses in the first place.
