All this intense discussion is pointless, anyway.
Airlines are reducing schedules/flights due to the high(er) price of avtur.
Less capacity requires fewer runway requirements.
Which means... fewer arrivals.
IE, more distance to work with for the ATC folks (who are already worked to the max, I'm sure).
Problem solved...in the short term.
Longer term.... airline managements need to wake up and smell the coffee, for it is THE FOLKS UP AT THE POINTY END WHO MAKE THE DECISIONS.
In other words, stop this nonsense of secong guessing.
Full stop.
NB.
In the small carrier I work for, it is the FD crew who call the shots, and the head shed backs us up...totally.
Without reservation.