This needs further thought as the Quran is clear that one man and one woman is sufficient when two men cannot be found.
I sometimes act as a witness to prove someones ID and the form always calls for two competent persons, professionals, irrespective of gender.
If you are speaking about a small minority of women who are more competent than the majority of men, then the issue of numbers of women will not matter.
I do not think this should ever be thought of as the Quran demeaning women since three witnesses are not enough to counter the evidence of one women; four men are needed:
24:4 (Protecting the honor of a woman is extremely important.) Those who accuse noble women and then fail to produce four witnesses (the court of laws shall order to) carry out eighty lashes to such accusers. And never in the future accept their testimony. They have drifted away from morality. [24:23. Faasiq = One who drifts away–from what? Will depend on the context]
And her husband cannot overrule his wife's testimony either:
24:5 Except those who afterward repent and reform. For God is Forgiving, Merciful.
24:6 As for those who accuse their wives, but have no witnesses except themselves, then let the accuser call God four times to witness that he is telling the truth.
24:7 And the fifth time, that God may reject him if he is telling a lie.
24:8 But punishment shall be averted from her if she calls God four times as Witness that he is telling a lie.
24:9 And the fifth time, that God may reject her if he is telling the truth. [The court shall then punish neither the husband nor the wife, and it infers that the same procedure applies if the wife accuses her husband. The couple in the presence of the court will decide for or against divorce. This procedure in FIQH is called as LA'AN]
24:10 Were it not for God's favor upon you and His grace (your social fabric would have been undone). God is Clement, Wise.