Just to add to the discussion about minimum connection times at Sydney:
We initially had a 3h30m connection in Sydney when transferring to QF75 to Vancouver. Qantas cancelled the domestic leg and put us on the next one, which had a 90 minute stopover - which would have been fine except that our new fight ended up being delayed by 45 minutes.
Several other factors to add:
1. They rebooked us while we were mid-flight, but no one told us what was going on so we had no idea. In fact, when we asked the CSM because we were worried about the connection he actually told us they'd be holding the plane for us as there were a couple of people on that fight. Assuming that they had our details and there weren't an issues we immediately disembarked and went to gate 15 with our boarding passes where we were told our connection had been "severed", go to the counter after the exit to get more information.
2. The guy at the counter just gave us some hotel details and our flight number for the following day with Air Canada, couldn't give us any other details. The ground staff weren't particularly informative, not eager to be helpful, which after the crew on our domestic flight was even less useful was extremely disappointing.
3. We have special meal requests, one of which is diabetic. Those requests didn't get transferred across to our rescheduled domestic flight (so no food per-syd), and Qantas are now telling me that they are unable to confirm this for the rebooked flight with AC tomorrow morning because it classifies as a "late request". While inconvenient and sucky, this isn't really an issue on a short haul flight. For a 14h30m flight however, not really acceptable.
4. Ms Cognac has a real anxiety of flying and has to work up the courage to make a trip. We got the notification the other day that we got a classic business upgrade, which made the trip much more bearable in the lead up. That's obviously been blown out of the water now and is causing major problems. Hopes up and then shattered as we get to the connecting airport is much, much worse than just having a baseline level of anxiety in the lead up to the trip.
5. I'm QFF Platinum. So while I'm not the highest revenue earner on their books, I fly often enough to know that irrops are part of the deal sometimes. But the lack of communication in this situation has been truly terrible. If this is what they have to offer a WP by means of service on a full revenue fare I really, really feel for what others have to deal with.
6. Now we're really getting into first world problems: I booked this trip using a covid-related TravelPass with DSC attached. Won't get those sweet DSCs for that long trip across the pacific now that we're going with AC instead.
So, long story short, if you're flying through Sydney with Qantas onto an international connection, get in the day before if you can.