How do Jehovah Witness account for John giving equal respect to the Father, Holy Spirit, and Jesus in the Rev.1:4&5 introduction to the seven churches

Revelation 1:4&5 >John to the seven churches which are in Asia: Grace be unto you, and peace, from him which is, and which was, and which is to come; and from the seven Spirits which are before the throne; vs5) And from Jesus Christ, who is the faithful witness.... Obviously there are three personas addressed in this introduction that provide grace and peace to the churches. How do Jehovah Witness explain the seven Spirits (Holy Spirit) as being a non-person if John addressed Him on an equal basis of respect in this introduction?