Hmm that's true, I suppose that you could read it as her being terrified because of her gradually realising what she had let herself in for, but yes she did come across as trapped in that episode

And they probably would hesitate killing Alana for that reason, but then while I understand the talk of fridging when it comes to most of the main deaths being female, I'm not sure how many male characters they've even got as an option to kill off other than Jack (who is canon safe at the moment), Chilton, and the two lab techs? And their deaths wouldn't have that much impact anyway IMO, I can't even keep their names straight :P There's quite a few more memorable female characters to draw from with Alana, Margo, Bedelia, Freddie etc. Well and Freddie is presumably going to die during the Red Dragon arc this season anyway.

I guess that's partly an issue with Freddie and Alana being switched to female from the original canon, they now leave themselves open to criticism if they continue to kill off exclusively female regulars, but with Hanninal, Willow, and Jack all obviously safe, Chilton is their only real other option to kill off among the male characters, and they seem to be having too much fun writing him at the moment for that