[Classic Contractor's Armor not added to Collections]

This is currently happening to me with my Gold Scalene Armor.

[The Taung > Mandos Now.]

So powerful they were, how did the entire species get wiped out?

 

Because the writers wanted to put in another proud race that goes extinct from flaws like pride and over expansion i.e: the republic's many collapses, the Rakata and Gree if you want to include them. The devs could easily just write them back in some how with a splinter colony or event a sleeper ship.