Trying to get a useful Mk XII purple out of the powered alien artifact is like getting a specialty hologram out of the Hamlet doff mission. It can be done, but not frequently or easily.
I've been campaigning for adding a crafting bay to a Mk 4 or 5 tier starbase which will let you craft Mk XII gear. I would also like to see a menu of procs that we can choose from to do the crafting, and the associated cost. Even if we had to go to Memory Alpha to make it and spend lots o' dil, letting us craft it would be nice, it would actually make crafting useful again. Despite having maxed one toon for crafting, she never goes back to Memory Alpha any more unless we are helping a lowbie level.
"Susse-thrai" had been the name bestowed upon her, half in anger, half in affection, by her old crew on Bloodwing; the keen-nosed, cranky, wily old she-beast, never less dangerous than when you thought her defenseless, and always growing new teeth far back in her throat to replace the old ones broken in biting out the last foe's heart.
Romulans: left one homeworld, lost another, third time's the charm?
If Mk XII purple becomes craftable at memory alpha, I think that means that Nadorc should provide some even better ultra rare Mk XII console on a crit success. It does require effort and people wouldn't like it if it was made obsolete by standard crafting methods.