I'm not sure what the point is. That still doesn't negate every view of the Godhead or any statement by Jesus about who is one and who is God. The fact is that God or Christ interacts with people and the manifestation of that interaction is what's called the spirit of God...or the holy spirit. But it's not a separate entity or person in the Godhead.
As an aside I've always thought it interesting that in this verse this aspect of God's spirit can't or won't appear until after Christ is taken up. In other words, it apparently can't or won't exist until Christ is back in the heavenly realm.
See you in the clouds Doug ...