The Apostles knew the Holy Spirit and worked with him... its the same today.. Many act like they know the Holy Spirit BUT DO NOT.. Healing is NOT one of the fruits given to the spirit but it can be one of the fruits of knowing the Spirit.. The Father Son and Holy Spirit are "One"..
Beware of any that would Hijack/Supplant/Impersonate the Holy Spirit from/in your life..
They are robbers and thieves probably hirelings(John ch 10)..
What are they stealing?.. Your future..
Yes, you are 100% correct. They were chosen instruments through which God chose to publicly work. Perhaps I am guilty of using a little shorthand. :)