I was in BWL earlier farming some transmogging stuff and we got a couple of Elementium Ingots dropping as usual. I won one and a friend of mine won the other. Neither got them in their bags though so we went back to find the body and loot. No such luck, they didn't exist at all. Odd we both thought but kept on going.
Afterwards I made a GM ticket about it, hoping to get it that way and this is the answer that I got:
I have never heard about that before so that is why I ask you guys, is this GM right or did he just go with a quick excuse so he wouldn't have to do anything?
As far as I know every technician in BWL has a chance to drop an ingot.