This was annoying in SCoB, where the Heavy High Allagan Coat was in T9.

Then they went and did it again in FCoB, putting the Dreadwyrm Armor of Fending in T13.

What's the point of always making tanks wait until they have cleared the last raid tier before they can get the nice armor? This sucks.

Unrelated Side-Commentary:

The Heavy High Allagan Coat is almost the only tank chest piece in this game which doesn't look absolutely hideous, someone on the FFXIV team really loves huge shoulder pads on the tank armor, the PLD AF and the Ironworks Armor of Fending both reflect the designer's love of the NFL because you look like you're ready for some football with those chest pieces.