That's all very well intentioned comment Captatin Stable, but what about those poor pople in the back who are blissfully unaware of how clued up or otherwise their Flight Crew may or may not be regarding the potential issues.
In which case, no passenger should ever travel by air ...... I'll tell Danny to start closing PPRuNe down as there will be no airlines left
If you think the situation at Doncaster is anything new, then you need to look further afield. This scenario happens at many airfields up and down the UK, as well as all over the globe. People live with it and adapt. They have no other choice.
Aircraft in uncontrolled airspace are legtimately allowed to be there. There is
NO separation mandated, except 'see and be seen'. The responsibility for that separation is just as much that of the commercial pilots as the guy in his helicopter or aerobatic steed, regardless of the phase of flight. If that means a commercial jet breaking off the ILS in accordance with the Rules of The Air to avoid a GA aircraft who has the right of way according to the ANO, then that is what the pilot is obliged to do.
As Captain Stable said, the rules for different kinds of airspace, for avoiding collisions, for Air Traffic Service provision, are all laid down in documents which pilots must legally take account of. Thus there should be no surprises to anyone.
As Doncaster is now the new kid on the block, the moral obligation to liaise with other well established aviation activities must lie with them. However, without controlled airspace, they cannot have any hard and fast guarantee that every airspace user will abide by any local agreements. And quite rightly so. The freedom GA pilots have is enshrined in law. Airmanship on the part of both parties has served relatively well over the years in avoiding mid air collisions, I don't see why the opening of a small commercial operation should suddenly erode that and make pilots 'forget' what they already know.