I think it is quite decent and doesn’t deserve the low rating. Many people will not watch it because of the same. It is not a work of art. But it is definitely a 7/10 rating movie.
The reason for a lot of people giving low scores is they don’t like a) how hypnosis is portrayed (which is not accurate) b) how a therapist is portrayed.
This is a movie and a thriller. This is not a serious drama where the movie has to be accurate about these thing. This movie was much better than most action thrillers with loads of CGI.