Yeah, those are just BS marketing awards that JD Power sells rights to.
Meanwhile, the Aztek is below average in the JD Power Initial Quality Survey, based on the 2001 (first year, though) model:
Mechanical reliability: 3 (out of 5)
Feature & Accessory reliability: 2 (out of 5)
Body & Interior reliability: 2 (out of 5)
Its sibling, the Buick Rendezvous, had the same below-average scores for its first model year, 2002.