The words you quote, while relevant and timeless, nonetheless were written in a time when women were not the primary or even full time co-breadwinners in most frum households. Today, a woman needs an education for many reasons, but most especially, because SOMEONE has to be able to earn a living, and many of the husbands are not doing so. Plain and simple.
If she is uneducated, her ability to earn will incrementally decrease. There may be a variety of places in which she can become educated and employable, not necessarily in a college setting, but let’s be real. NOT every girl can be a morah.
With great respect, in the ideal world we would not need to get education in a treifeneh environment. But we do not live in a utopia, and we have to be practical about life. College life may not be ideal, either (far from it), but in order to protect yourself from your enemy, you have to recognize who he is, and what his strengths are, and then arm yourself to fight back. Presumably, we get those tools in Yeshivah and in the home.