You are right
The HO are already archetype specific, what I mean is that they could probably be reviewed/updated to match some specific problem reported by players, any player input are needed, a paladin/sk does not have the same problem than a guardian (cure,ward,heal,mana,aoes....), same for a templar compared to fury/warden
Flawless buff is account wide, but not everyone is raiding or at the same level, and that make a huge difference in this zone when you did not have it or at low level, I know some players who have not completed the h2, should this zone be accessible to them and decorators ?
As for bardings, players with low crit bonus and no p2w buff/merc/familiar usually benefits more from crit bonus barding than potency, especially in this zone, that's a total of 1060+ crit bonus if you wear last year striking barding, and not everyone has 11 of them
Also as mentioned in my first post, a lot of casual players who do not have the new mercenary from the marketplace still equip 4 to 6 crit bonus overcap item, and for most they did not know they had to replace them with crit bonus item (that they usually don't have because it's not in the meta for them) and they got stuck with 20k crit bonus in this zone, sometime even less, compared to top raid players who are easily cap at 30k in fight
Having a way to leverage the stat difference could greatly help some players.