Mortal Kombat Armageddon: Sareena's Ending

i wanted to get rid of all the characters that i remembered suck from this game. Sareena is one of the worst characters in this game to use honestly. except when you use her sword style. i honestly had a hard time fighting normal characters with her, much less Blaze. Sareena is actually unique in terms of why she is here. She originally debut in MK Mythologies as one of the trio that Sub- zero fights. Her and the original sub-zero had a short lived implied relationship till she gets died by the end of it. We never see her again till this game. she comes back again in jax's part of the story in MKX. She makes a cameo but you cant play as her. They dont seem to know what they want to do with her but keep letting her reappear. all she has is that its implied that she has a thing for both sub-zeros. Her ending here just has her get her revenge and gains the ability to freeze, freezing quan chi in a block of ice forever... but like why keep her frozen and why not just kill him while he's frozen?