True, but Bright Raven believes the holy Spirit is the person who impregnated Mary. This would make the holy spirit Jesus' father if the holy Spirit were a person.
Also, since God is holy by definition then we should be able to refer to him as the Spirit as Jesus did in John 4:24.
The holy spirit is indeed an actual person, but he is not the source of power to bring conception, it is the Father and is always the Father when power is exercised. Even in the beginning, when Jesus Christ spoke the world into existence, it was always the Father that exerted the power to make it be, through the speech of Jesus Christ.