Hmmm, apples and acorns a little bit.
Whilst flying a jet airliner into an international airport you also eat up loads of extra track milage - if NH can do a run & break without conflicting with other traffic then I think the technique is valid for noise and efficiency reasons.
The other problem with 'Weald is that there is no dead side and no overhead joins. Also the STN zone is at 1500' overhead the field therefore everyone is forced into a narrow slot of airspace.
At least if NH is doing a R&B join I know where he is. I'd rather he did that than blaze around the circuit overtaking folks.
Incidentally, the accident was not caused by a run and break.