As aggravating and unbalanced as I find SC online to feel, I wouldn’t be too sure she’s broken just yet. The game requires you to know a lot about what your opponent is doing in order to play well. Right now, most people know nothing about her strings, where the gaps are, what’s punishable etc.
This is always true for any fighting game - everyone complains that every new character is broken. But then in two weeks we will hear from everyone that she’s bottom tier.