ATC dislike having aircraft holding as much as flight crew and passengers. Simply put, it means an extra aircraft in an en route or TMA controllers airspace that doesn't need to be there. But, just as I can't knock on the cockpit door and get a jump seat ride mid flight because it is against the rules, a controller can't nominate a runway with cross wind greater than 20kts, separate aircraft by less than 5 / 3 / 2.5 nm or have less than 500 / 1000 / 2000 / 3000 ft vertically between aircraft because it is against the rules. I have no doubt that aircraft and flight crew cross wind limitations are greater than those imposed by the rules. The rules aren't necessarily right or up to date and the system may well be broken, but the guys and girls on the other end of the microphone are doing their best within the constraints of the system. As has been stated, lobby CASA for rule changes (specifically MOS Part 172 10.3.1.1 for runway nomination and cross and tail wind components).
Last edited by Mhayli; 4th Aug 2019 at 10:38.
Reason: typo