Hi tyriel,
first of all, you needed one week to find Fia the lemurian armorer at the Pagoda of boundless lusts ?
WOW ! with that kind of luck, never ever play at a lottery, please. 
… just kidding.
But back to topic.
You are absolutely right. And to make it more clear to the Devs.
“Normally” armors has 3(6) different qualitys and gives a total of the following bonuses.
- Base +5
- Exceptional +7
- Flawless +9
- Base (Epic) +5
- Exceptional (Epic) +7
- Flawless (Epic) +9
For the Lemurian Warrior Set it looks like this:
- Base not available -> but thats a different report.
- Exceptional not available -> but thats a different report.
- Flawless not available -> but thats a different report.
- Base (Epic) +5
- Exceptional (Epic) +5
- Flawless (Epic) +5
So tyriel is absolutely right, the Exceptional (Epic) and the Flawless (Epic) version need some upgrading.
These are the Database IDs we are talking about.
Lemurian Warrior Exceptional (Epic): Mask (ID: 52456), Chestpiece (ID: 52457), Gauntlets (ID: 52458), Tasset (ID: 52459) and Boots (ID: 52460) .
Lemurian Warrior Flawless (Epic): Mask (ID: 52461), Chestpiece (ID: 52462), Gauntlets (ID: 52463), Tasset (ID: 52464) and Boots (ID: 52465)
P.S.: As a cross-reference: By defeading the Witch Queen we recieve the Lemurian Royal Set too. But here is all fine with the different quality bonuses. (+5 +7 +9)
greetings
SirBowen