"her role can easily be taken out" you can say the same for valeriy and then it'd arguably be correct (he might change hopium). her role isnt easily shaken and is unique to her being a water imp, primadonna and a part of the rokot caring about the common folk with great empathy.
even calling her a childish adult?? WHO WOULDNT BE UPSET IF YOU ARE IN THE ARTS AND A MF WHO GOT A TICKET DIDNT ACTUALLY LISTEN TO YOU? please read her story quest it would be much more onto your face on why she reacted like that.