There's a couple of problems with this response (beyond the contrary proof-texts from 1 Tim and 1 Cor.).
1. This doesn't distinguish between the priesthood of all believers and the office of ministry. Obviously all Christians have the right, ability and duty to proclaim the gospel because of the priesthood of all believers. But not everyone has the right to publically exercise the office of ministry. Part of the confusion about this in the ELCA (and in the WELS) is that these denomination have a strong Pietistic background. The Pietists didn't make a distinction between the priesthood of all believers and the office of ministry.
2. The real issue with women's ordination is the question of the orders of creation. Luther and Paul in 1 Timothy note that it was the male vocation to exercise the office of ministry because the man was created first and was given the Word of God to proclaim to Eve, the first Church. This explains why the Fall is just about the individual sin of unbelief, but also (on Adam's part) a failure to properly exercise the office of ministry.
3. This explains why Jesus was male. Technically human nature is human nature whatever gender a person is. But because it is the male imperative to properly exercise the office of ministry, Christ as the true prophet, priest and king recapitulates Adam in properly fulfilling the office of ministry.
4. This makes the scene in the garden all the more interesting. Jesus, the true Adam, confronts the women in the garden as new Eves. Jesus is the true Adam who held to the Word of God and proclaims it. This time the women listen to the Word of God, whereas mother Eve did not. Much like mother Eve, they go and tell the men. Nevertheless, unlike Adam who wrongly believed Eve about the false word of the serpent, the Disciples don't believe their true report about the Word of God.
5. If the report about the women in the garden validates women's ordination, then why does Jesus instruct them to go tell the men? In other words, the point of him doing this is so that he can expound the Scriptures to them and finally give the definitive instruction to them in the kerygma so that they can "make disciples of all nations." What this shows I believe is that Jesus tells the women to tell the men because it is the male prerogative to exercise the office of ministry. Otherwise he would have simply commissioned them and teach them the kerygma?
6. Hence the story of the women in the garden invalidates female ordination, rather than vindicating it.