Why are the Echard/Trizek rings not always available?

[Runespider]

In the past I could understand anniversary rings being one off items, they had 10 charges and when it was done it was done.

These new rings are infinite use, how can you not let all players get these items?

I talked some friends into coming back, they procrastinated but finally re-activated while waiting for the new expansion on xiv to come out.

Now they can't have access to the nice leveling speed that I have, can these items be made always available from conquest points or something?

I would even buy it as an optional item on a cash shop.