Rating is according to perception of viewers.
Most importantly is the reality. Did CJW really grow as an actress or her acting skill remain stagnate at "sobbing queen" level.

Based on Bolt's observations, CJW needs to think, rationalize and understand the character(s) that she seeks to potray better. At the level of she potraying Mari, it is only at a very superficial level, or rather Mari is indeed a rather shallow superstar. If it is the case, Bolt is questioning why CJW decides to take up this role?