I’m shocked at such poor scholarship.
Of course there can be females ordained to the diaconate.
Constitutiones Apostolorum Book 8"Concerning the Deaconess— The Constitution of Bartholomew.XIX. Concerning a deaconess, I Bartholomew make this constitution: O bishop, you shall lay your hands upon her in the presence of the presbytery, and of the deacons and deaconesses, and shall say:—The Form of Prayer for the Ordination of a Deaconess.XX . O Eternal God, the Father of our Lord Jesus Christ, the Creator of man and of woman, who replenished with the Spirit Miriam, and Deborah, and Anna, and Huldah; who did not disdain that Your only begotten Son should be born of a woman; who also in the tabernacle of the testimony, and in the temple, ordained women to be keepers of Your holy gates—do Thou now also look down upon this Your servant, who is to be ordained to the office of a deaconess, and grant her Your Holy Spirit, and cleanse her from all filthiness of flesh and spirit, 2 Corinthians 7:1 that she may worthily discharge the work which is committed to her to Your glory, and the praise of Your Christ, with whom glory and adoration be to You and the Holy Spirit for ever. Amen."*
Chalcedon Canon 15"A woman shall not receive the laying on of hands as a deaconess under forty years of age, and then only after searching examination. And if, after she has had hands laid on her and has continued for a time to minister, she shall despise the grace of God and give herself in marriage, she shall be anathematized and the man united to her."D)
Trullo Canon 14:“Let the canon of our holy God-bearing Fathers be confirmed in this particular also; that a presbyter be not ordained before he is thirty years of age, even if he be a very worthy man, but let him be kept back. For our Lord Jesus Christ was baptized and began to teach when he was thirty. In like manner let no deacon be ordained before he is twenty-five, nor a deaconess before she is forty.”
When they are ordained by the laying on of hands, the word used is CHEIROTONIA not Cheirothesia like for the minor orders (conscrated nuns and widows).
“…the bishop still imposed his hands (cheirotonia) on a deaconess, and conferred on her the orarion or stole (both ends of which were worn at the front, one over the other); he gave her the chalice, which she placed on the altar without giving communion to anyone. Deaconesses were ordained in the course of the Eucharistic liturgy, in the sanctuary, like deacons.”