People keep talking about how irrelevant or ancient these quests are (out-dated old content), giving out dated rewards... which baffles me.
If you have never done these quests before, they're NEW to YOU. They are also logically tied to the progression of the upgrade path you must take to keep the rewards relevant.
The Logical Path: (Follow with me here for a moment)
Obtain original AF.
IMPORTANT: Obtain Sea Access by (spoiler)
defeating Tenzen on the airship, who is from the far east, and is at war with the near east, where this NPC is from, so this defeat would mean something to her, as regards to your fame...
and become qualified (or shall I say: have enough CoP mission progress, that functions like nation fame in many respects) to interact with the NPC who can BEGIN the AF upgrade process, who explains:
"I came from the Near East to peddle my wares. I heard that there are simply hordes of gullib--err, that is, I have heard of the great adventurers that roam this land, and wish to be of service to them. If you happen to know of any seasoned adventurers, I ask that you bring them to me. Be sure to tell them of my fabulous good!
Wait a moment...
You are an adventurer, are you not? I hear your sort does all kinds of things--fighting with monsters, cooking, and collecting all sorts of little knickknacks...
Oh, I am truly sorry if I have offended you. I am from a land far to the east of here, and tales of adventurers are quite popular in my hometown.
Anyway, you adventurers are quite the rowdy lot, always playing outside and showing up looking as if you had wallowed in mud, correct?
Are you really so dirty?
Oh my, such confidence.
Could it be because you possess that remarkable armor I have heard about in rumors...artifact armor, I believe it is called?
I am not finished, so wait! Undoubtedly your artifact armor was once something to take pride in, but at present it is surely quite battered from your adventuring, not to mention that it has simply become old and could use a boost...correct?
If I were you, my dear friend, I would take your precious artifact armor and restore it! Rejuvenate it! Give it new life! Does that not sound like the proper course of action?
I know exactly what you need. You absolutely must bring the necessary ingredients, and I will send them with your artifact armor to the craftsmen of the Near East for a miniscule fee in ancient beastcoins!
There, I have contracts with the most skilled artisans, who will make your artifact armor shine like never before."
Go to Limbus to gather materials and ancient beastcoins to upgrade it to +1 versions. (The only option that existed for years.)
Gather more stuff to make AF+1 into the new and improved "Reforged" versions.
OR Take SE's generous short-cut to use different (easier to gather) materials to transform AF OR AF+1 into Reforged gear.
Gather more stuff from new battles to make RF into Reforged +1 versions.
...
This gear is following an upgrade path that requires mission progress to begin.
It's that simple. They're all connected as one string of gear...
It's like taking a relic weapon from Dynamis and upgrading it. Dynamis is "outdated content", but the rewards (can be) relevant today, ...
(Imagine this: the only versions of relic/empy/mythic that are worthwhile today are the 119's... why should we have to get the originals to 99 first? We'll just skip over all that crazy ancient currency, alexandrite, HMP's with a new "short-cut" item from SE that lets us take the base drop versions and just do the final quests... but we don't think we need the quest/mission progress needed to begin the upgrade processes in each case?)
... if the entire AF quest plus upgrade path was introduced in the same content update patch... it would ALL be considered relevant content. Being "Old" doesn't make any difference... it just means a lot of the players in the game have already done it by now.
Saying "Since I can skip the gathering of materials part of one step of the upgrade path I shouldn't need to be qualified to activate the quest in the first place!" is unreasonable, IMO.
I hope that makes the reasoning more clear.
Besides all that, from what I can tell, none of this is stopping someone from playing with people in today's new content (Ark Angels 2 and Divine Might 2) (unless people are going to complain about needing sky access to enter battlefields in sky...yeah... no argument is going to work there)