Since yesterday's patch I've noted that wrath procs a lot less when doing warzones, but the tooltip has remained unchanged ( 30% chance on crit from LF )... a normal cast from FL means 4 tics, so it usually procs every 1-2 FL's.
Yesterday I've counted up to 5 FL's without procs several times during warzones, so I decided to give it a test.
Went into pve zone and spammed FL on mobs of my equal level ( 50 ) and obtained that from 600 tics it procced 173 times, wich is pretty close to the 30%.
Went into warzones and just spammed FL. From around the same amount of tics, got a total of 116 procs, that's around 19,3%.
Tried dueling a friend, and from , again, 600 tics, got a total of 107 procs, that's 17,8%.
While it's a proc and chances depend a lot on luck, more testing is needed; but I'm asking myself if more people has noted this happening or is it just that I was very unlucky on the procs.
edit: changed the topic title, it has passed through my mid that it may just be a bug.