And not all Gedolim agreed with the BY movement; the Hungarians objected to the teaching of Rashi to girls (and certinaly Rambans and Maharals) on the claim that that constitutes Torah shebal peh. Others said that since Rashi merely explains the pshuto shel mikrah – the simple meaning of the text, it would be considered Torah shebiksav in this sense.
The Bais Yaakovs hold that Rashi etc. is merely an explanation of Torah shebiksav and is permitted. They hold that since Rashi merely explains the pshuto shel mikrah – the simple meaning of the text, it would be considered Torah shebiksav in this sense.