As other have mentioned this AC was way outside the window of acceptable "stable" parameters. Anyone familiar with the Airbus famili knows the 321 (particularly at heavy landing weights) is a"Bitch" to slow down.
You might get away with the above hot & high scenario in a light 319 definitely not a 321 without some serious pilot heroics. Not good or desirable in either case
And yes stable means final landing configuration, on glide path, on speed and thrust above idle at 500 ft agl and 1000ft IFR.
I cant believe the debate on this subject out there......
Cowboy days are over boys......