By the way, Aaron, explain how this...
1 Corinthians 2:8
King James Version (KJV)
8 Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
...makes this passage exclusive to His Person (which again cannot be made exclusive to the Redemptive Plan)?
Your original point:
The simple point Paul makes is that if the princes of this world had understood that Christ's death would do the opposite of what it was intended (silence Christ), they would not have put Christ to death, and in fact Satan would have assigned the greatest security detail this world could possibly know to keep Christ from any harm, so that they could keep him from the Cross.
Aren't we glad that God in His wisdom knew what He was doing in keeping the Gospel a Mystery?
You are coming to the passage with dispensational presuppositions. You are saying the Devil did not know God's plan, and God by necessity had to engage in a covert operation to accomplished His purposes.
Satan did not know God's plan? He knew Christ had to suffer in Jerusalem for the salvation of His elect, and tempted Him to abandon that path.
Mat 16:22 Then Peter took him, and began to rebuke him, saying, Be it far from thee, Lord: this shall not be unto thee.
The Apostle's point is that man by his corrupt, natural wisdom can discern neither Christ's Person nor His Wisdom. The princes spoken of are not devils. They are gods ("Have I not said in your law, Ye are gods?"), men in positions of wisdom and honor. But were the Person and Wisdom of God discernible by nature, they would not have corrupted justice and consented to Christ's execution.
There is nothing Dispensational whatever in the passage you take as one of its pillars.