Becareful what you say…
Your understanding of Shimson “sinning” is superficial and pshat. I already said, Shimshon was doing something mystical. In fact, he was nullifying the Plishtim in a way you don’t understand.
As for Yiftach being a simple man… I’m not even going to waste time refuting you. Those of understanding know the Talmud is but a roadsign to a deeper map. Yiftach a”h was anything but shallow. His soul root alone is high level and intricate.