The teaching used to be that, while the Father and Son were separate beings, the Holy Spirit was described as the power which emanated from that union. In other words, the Holy Spirit was not viewed as having an individual consciousness.
You are overloading yourself with an impossible task which you have assigned to yourself. You might also be obsessing over this. While you are steaming and fuming, that charlatan is not affected in the least. There are good and faithful Christians fighting this faker in each and every location where this false church exists.
I don’t recall that specifically. But I do know that the word “trinity” was quite frowned upon and no mention of it was ever made except to point out the “flaws” in mainstream Christian thought. It must be remembered that leaders like Armstrong viewed themselves as the conduit through which God was working and they alone could interpret the word. Since Catholicism was seen as the worst of what Christianity had become, and that went back to the early centuries, every common doctrine was brought into question. No mention was ever made as to how and where the bible had come from, but cult leaders don’t typically like or give credit to the Roman Catholics for anything. So every opportunity to discredit the doctrines gave them a chance to flex their tiny theological muscles.