This show seems to be really intent on having its cake and eating it too. It wants its characters to be lethal and scary, capable of killing any bad guy with ease, but it also doesnt want them to be morally responsible for it, lest they become too unsavoury to certain viewers. They basically went through this same storyline last year when Thea became a killer through Malcolms hypnotic control. It didn't work then and it doesn't work now. There just isnt anywhere for this storyline to go. Its likely shell just repeat the beats shes been following all year until some magical item reverses it. You can bet shell kill again and fight with Malcolm for enabling her as weve already seen before. The good news is that obviously Thea isn't going to stay a crazed murder for the rest of the series and the problem is likely to be resolved soon. But if they drag it out until the end of the year, its just going to add more pointless drama when Thea could be facing a new, more believable type of personal conflict instead.
Connor loves movies, comics, and TV, and is trying to write for people who feel the same way. When he's not sitting on the couch with his laptop, you might find him lying in his bed with his laptop.