a) No one in their right minds would promote and authorise something that would so clearly be a huge safety risk. No airlines would move there either as they all have their own safety and risk departments - and what with the UK's corporate manslaughter rules too. No one wants blood on their hands.
b) Millions and millions would not be continually being spent on consultants and feasibility studies if the whole project is a total non-starter from a safety perspective.
It is called 'people not learning from the past'
It is Homer Simpson constantly making the same mistake over and over again because he hasn't learned from his previous mistakes - the fact he keeps getting hurt trying to get that 4-pack off the electricity wire.
It's called 'sticking fingers in ears and going la la la la la' because you know better than everyone else.
A bad idea from the start is still a bad idea no matter how many consultants tell you it MAY be a good idea.