Not sure what started the exchange (skipped some messages in the thread), but you are correct that not in every path she took self-defense lessons. Also, even if she took self-defense, that has to be taken with a bit of "warning".
Even in reality, one lesson in self-defense would not automatically make her go "scrambling eggs"
if attacked, especially considering the psychological situation left by Anthony.
If she did the self-defense, plus reacted in the previous occasion, that may make her more capable of effectively reacting to the situation in a certain way.
There is actually a variable that keeps track of how much she can do that kind of reaction, and if I remember well, at least for some scene before 5.05, some choice would be possible only if that variable is high enough.