One would have thought that a licenced airfield operator would be able to realise this without needing to discuss it with the airlines. But then of course they're more interested with the profitability of the shops and overpricing the car parks than with anything on the aviation side.
The list of "risks" does indeed seem to have been generated principally from the construction contractor's experience of works rather than anything from the airport's side at all.
Is the MD of Bristol Airport, who I seem to recall at the time telling the media that the runway was perfectly safe and up to spec, still in post ?