I still think all of this is an unnecessary dichotomy.
Your example is a good example.
In your example you've asserted that (A) the gospel was preached with great anointing. I call up Romans 10:17 which explicitly says the Word of God creates the 'hearing' necessary for faith.
And you severely misunderstand Paul. The prophet Abraham is Paul's principal paradigm of faith in both Romans and Galatians. And in both epistles, Abraham's
hearing at Genesis 15:1-6 is his principal example of saving/sanctifying faith. You are right that faith comes by hearing the Word, specifically the
kind of hearing-the-Word exemplified for us at Genesis 15:1-6. It was an experience of DIRECT REVELATION:
"Then the Word of the Lord
came to Abram in a vision" (Gen 15:1).
This is NOT the written Word. There was no written word at that time. Now, at Gal 3, Paul twice refers to this Abrahamic dynamic as 'receiving the Spirit by the hearing of faith' and he severely indicts the Galatians for deemphasizing that principle. Paul is literally insinuating that the degree of success in the church
stands or falls on the emphasis of that principle.
Let's be clear. As Calvin noted, verse 6 is citing Abraham's experience at Gen 15 as the
exemplar of what it means to receive the Spirit and receive miracles via the hearing of faith (direct revelation). Let's see how the passage illustrates both.
(1) The divine Word came to Abraham. That's an outpouring of the Spirit that arrived AFTER Abraham was already saved. Paul is telling the Galatians. Having
begun in the Spirit, are you now matured by human effort? Meaning, having received one outpouring at the time of conversion (when the Spirit first spoke to you as Inward Witness), isn't it obvious that, to mature, you need more hearings/outpourings - more direct revelations?
(2) The reason that direct revelations arrive as outpourings is because when God speaks, he releases an outpouring (the divine Word) - see Isaiah 55:11.
(3) How did miracles apply here? Gal 3:5 implies that his experience at Gen 15 ALSO exemplified miracles-through-hearing. Abraham needed a miracle. His wife was barren and there was no known medical solution at that time. The Voice spoke to him a PROMISE of a child. (Note the emphasis on promises in chapter 3 of Galatians).
That is the paradigm. We are supposed to be prayerfully waiting upon God for direct revelations (signs, signals, promises) and such - which is
precisely the function of a prophet and those who are seeking that gift. When the OT saints marched into battle without a sign from God, they were likely to be defeated. The same is true of evangelism today.