Given the centrality of salvation in Christianity, why do believers so deeply debate whether it can be lost?

I watched the debate between James White and Trent Horn on whether a Christian can lose their salvation: [DEBATE | Can a Christian Lose Their Salvation? | Trent Horn vs. Dr. James R. White](https://youtu.be/72TRODe8BdA) . It's remarkable how well-educated scholars, studying the same biblical passages, can reach such diametrically opposed conclusions, particularly on a doctrine as pivotal as salvation. One would expect that salvation, being a cornerstone of Christian faith, would be communicated by God with utmost clarity to His church. Yet, we find ourselves debating the mechanics of salvation and the possibility of its loss. How do Christians reconcile the extensive debates surrounding salvation doctrines with the expectation that such a crucial tenet of the Christian faith would be revealed with unmistakable clarity by God?