It's the tier of gear between darklight and allagan that was completely missing from the game. Should be a welcome addition

also, the moogle weapons will supposedly be 80 so relic weapons will have an alternate and extreme primals are supposedly 90 making for an alternate to relic+1 while twintania will remain as the sole source of 95 making her the ultimate goal of everyone until 2.2 where there will be harder content released
I'm hoping one of the primals might drop rings instead of weapons though since that particular piece needs 2 and there is only ever 1 available for each gear set

crystal tower just should have been at launch with coil as 2.1 is the only real issue as far as gear goes