I'm a big fan of Whitehead's philosophy,
https://medium.com/inserting-philosophy/alfred-north-whiteheads-natural-theology-4786a8039440
but I can't agree with him on that point. In terms of the influence of the ancient Greeks, I say that Plato and Aristotle are the twin pillars of Western scholarship and up until Kant, almost all scholarship was an interplay between their worldviews and approaches. Kant is the watershed is philosophical development.
My course, and the textbook that I wrote for it, take a chronological approach to show how ideas are built on previous ideas. My book has chapters on Plato and Aristotle, but for the reasons I mentioned, I start the course with Chapter 3 on medieval philosophy and tell the story of how we got here chronologically.
