Different people have different opinions...let them decide for themselves
What you said is indeed true but don't get the wrong idea of what I am trying to say here. Your comment is definitely a warning for people to be wary of what they are jumping into. Your opinions are valued, all opinions are but others may like the movie as well you never know...
Although the story had a weird and unclear ending, I still find it great and definitely recommend it to anyone who wants to watch it. This drama has a twisty plot, where you think this is happening but in real life something different is happening instead. Just like how we think A'Nu is Shen family's real daughter and Li'Ge is pretending to be the Shen's daughter but in the end, Li'Ge is actually the real daughter and not A'Nu. At the end of the day, it is your opinion and your choice on whether you want to watch it and not mine...