RNG is RNG man, I've had similar experiences in 10m with a severe shortage of Conq tokens and yet so many Vanqs that people had 4pc main spec, 4pc off spec and we still had enough Vanqs left over for me to fill one of my bags with them. I still have those Vanqs in my void storage for shits and giggles.
Aa for LFR, you guys gotta realize that while it's quite possible to make them better raid comps, that would increase the queue times as well. A balance needs to be struck and shitty comps will happen. Just stop relying on LFR for gear, same as BH. I do it and it's nice if I get something but never enter the place with your hopes too high. Also with how fast queues are now, if you don't like the comp then LEAVE. Reqeue later, you have 7 dats.