As Savic and Arver themselves emphasized, “Contrary to the primary hypothesis, no sex-atypical features with signs of ‘feminization’ were detected in the transsexual group

Later I'll try to find the relevant studies, but there are some that have found male pedophiles to have feminized brain structures. Which is a clear indication that ''feminized regions'' in a male brain is not the same thing as a woman having the same type of ''feminized'' regions in her female brain. If ''feminized'' regions in male transsexuals are found, it needs further study to determine what effects they are having, and not simply assumed that oh well, they must be women then, because 1% of their male typical brain is showing some "feminization" (which itself doesn't even mean female-typical).

Edit: I wrote this because it reminded me that AGP males were also found to have some ''feminized'' regions, but different ones than homosexual males did.