only four out of six primal sets from lore gear?

[Morningstar1337]

So for Lore we get: Ifrit, Garuda, Leviathan, and Shiva.

That leaves: Titan, Ramuh, Moggle Mog, Bismark, and Ravana as far as the story ones are concerned. Presuming that Moggle Mog will be skipped, that gives us another four primal armors for the next Tombstones if they so wish.

This is my thought on the next tomestone set as well, as well that the next PvP sets rounding out the rest of the Twelve

[Riardon]

They are limiting the gear set designs due to limited development schedule and resources but still it's rather disappointing.

[Croweyes]

Honestly, I'm fine with it. If you use up everything you'll have nothing left. Primal theme gear for next Expansion.
The gear looks cool ( subjectively speaking ) and I'm personally content.