I had a tank miss out on boss drop yesterday too.
I was vr8, rest of group was vr2.
HE was the only one not getting drop.
This was normal Selene.
So what of healers?
I recall that patch note. This however has happened to me when it was a spread of VR levels with VR5 being the highest. I am not saying it happens often but it has happened.
From 87 guild dungeon runs (with add-ons to log dps and loot)"Dagoth_Rac wrote: »"Might just be bad luck, but it feels like 8.3% is minimum to get a drop, but you need to be much higher than that to get the drop.