They are complaining because a spaceship named Slave-1 (which is extremely famous and important as we all know) has been renamed for a LEGO kit as "Boba Fett spaceship".
Which is obviously SJW censorship and not simply a maerketing play because the name Boba Fett is more famous than "random ship-number".
The chuds getting worked up about this definitely do have bigger problems in life. It's just that it's much easier for them to ignore them for a brief moment and redirect their anger to manufactured outcries about name changes on lego boxes.