I actually really like the revive mechanic having been changed to the death knight. Pre-change, if you had a Prince die n1 and they left… the priest (and bd) was in a bit of a tough spot.
But now since any bd can come back as the same class, that problem is gone.
I leave depending on the situation. If I am fool and die N1, yes, i might leave. I also might stay though as I honestly enjoy spectating and the guessing who will die. if BD/unseen i stay unless something comes up