I can understand if some people find her childish (and sometimes nonsense) mannerisms annoying but some just despise her Australian accent.
I just can't help but think it's quite racist. Not that I'm accusing anyone of being racist but I'm simply expressing my opinions on this matter. Fang on the other hand also speaks in an Australian accent but no one seems to pinpoint that.
To express more of my opinions, I'm glad Square is incorporating more and more nationalities through accents such as Cait Sith's Scottish accent and the British-accented majority of FFXII's cast.