How can a movie be so bad???

Rating: 1/10 (15 December 2017)

I am a big fan of the series, having watched all episodes many, many times. This movie is more like a failed SPACEBALLS attempt than anything worth of the Star Wars brand and producers should be ashamed of the final result. I do wonder if IDMB system has been hacked by bots or paid reviewers as all comments look quite negative and, despite of this, the overall grade of the good looks good. Can somebody explain this to me?