So there was a lot of negative feedback on the nerf to Vol's XP. So latest Lama build says:
NEW: Experience for Desecrated Temple of Vol has been returned to the previous value:
Previous Base XP on Heroic Normal: 5344
“New” Base XP on Heroic Normal: 5344
Of course, it can't just stay the same. If you keep reading, you find the OTHER nerf:
NEW: Temple of Vol now requires 1 gold key and 1 silver key (rather than 2 gold keys) in order to progress.