Serarah would prevent women from being able to lead communities or authoritatively answer halachic questions, just as women cannot be kings or judges because the position is meant to strike fear, or at least obedience into people.
In our modern society, women have greatly expanded roles secularly, as well as in terms of Talmud Torah. Therefore, its important to ask ourselves to what extent Halacha accommodates to social change. Women today are businesswomen, artists, musicians, CEOs, scientists, and Torah scholars. How does Halacha respond to such change?