It's OK. I view it as the product of almost 30 years of fan service: Boba Fett looked cool, so they created a backstory for his armor, a wonder metal, and a whole race of people who look just like him. Even though the expanded universe has been discarded, this series is the product of all those older influences.

Disney succeeds here because they correctly realize that people ultimately just want to see guys that look like Boba Fett kicking ass.