I find it just as amazing how he can remove chips so quickly, yet his passives never fly around even though he doesn't tape anything down. I'd guess he uses a low blower speed with high temperature.
Yep, that's the trick.
Each of us has limits of what we are comfortable doing and if I don't need to use paste, I hand solder.... SMD rework....out comes the hot air station.
So what kind of temperature range would this be? Well over 350°C? Over 400?
Don't know and don't really care.
For my "dumb" rework station the hot air pencil I use the smallest tip I have, ~3mm, max heat and blower speed ~1/2. Too much flow especially if not directly above will shift components and if the nozzle is too close to your work.
It's not a reflow oven where temp profiles need be right for a satisfactory result, you need to "drive" a rework station based on some small experience. Practice and learn.
Get some broken PCB's and have a fiddle, just be aware anything modern is likely be be made with that Pb free muck that seems to have been invented to make SMD rework a nightmare.