It seems out of character for Raki to just say that he is afraid to die. Raki always knew that he was weak even in the Ophelia arc. He was even willing to die with Clare just so that he can be with her. Even when Clare was transforming the first time and told him to get away from her he didnt (which consequently saved Clare). It makes me wonder why he acts like this all of a sudden. That was his only redeeming quality, and if you take that away, he does indeed deserve to be erased from existence like many people believe.

I think the reason why they just had to make him act like a wuss is so that he can come and knock Clare back to her senses after/during the following fight.