Nowadays, many readers are crazy about novels being turned into movies. They believe it wouldn't be as good as the novels.
Moreover, some fans even worship the characters. If an actress with a bad reputation plays the role of a beloved character, there will definitely be severe criticism directed at both the director and the other actors. They will feel that the actress is fake and tarnishing their precious character.
No director in his right mind would decide to cast someone with a bad reputation for roles of good-natured character. It's the same as writing 'I need a good scolding' on top of one's head.
Of course, if Aysel decided to play the villain, the movie would probably receive praise for casting someone who is seen as evil in real life. So, what Aysel is looking for right now isn't fans or attention; she simply wants to be known for her capability. It will be easier to win the audience's hearts that way.
