Tip from a major Altoholic who does these quests 13 times a week when they are up, never do this or any of the other Blue Elite Dragonflight World Quests in RAID groups. You should complete them in 5 player parties (there's very rare exceptions where a raid group is helpful such as if the whole party are super low ilvl but they are not likely at this point in the expansion) Why? Well, that's because once a group is turned into a raid not only do you no longer share credit for mob tags with your party members (you now have to tag each individual MOB yourself) but you're inviting other competition into your shard that are now stealing your MOBs/ % and now you're waiting for respawns and you have less chance to get the % from those MOBS on respawn because when your group is spread out you do not share credit for the kills with them, again, unless you tag them yourself. Inevitably your group will spread out when 10-20+ members are now COMPETING for mobs.
Please heed my advice, stop doing these in raid groups, do them in 5 man parties, that is, unless you like wasting your own time.
Thanks friends!