What's the matter with the bad review from IMDB user??

Rating: 10/10 (6 March 2019)

That's the biggest question i got after seeing the 5.6 rating (per 6th march). When i read the reviews, some of them are nonsense. They just gave a low score and they didn't review anything in it and didn't explain well about their reasons. I thought maybe some of them are the fanbase of another studio hehehe...
For me, this movie is great. It was a fun movie with good comedy and great storyline. Well the character development isn't really good, but the storyline is quite refreshing. I like the change of who is the real villain and the change of motive in this film. Sure it's not the first movie that tells story like that but it's nice they tried that way.
And this movie is the prequel to introduce Capt Marvel to the MCU before End Game, so what you expect the storyline from that? I read the imdb user's review and they said that the storyline is standard and not like they expected, so i ask what you expect from the movie that purpose only to introduce a new character for the universe and End Game. For me, it's perfect for this film to introduce Capt Marvel.
P.s. the reviews in RT is now 86%, they're real critics and they gave that score