The only reason the article seems to connect Yacob to the Enlightenment is because he wrote around the time of Descartes, and on similar themes. But that's not enough of a connection - without a causal interaction between him and the Enlightenment, the timing is just a coincidence.
Other rational and secular philosophers have lived in various times and places (China, ancient Greece, India, etc.). Yacob deserves a place of honor among them, but none of them are part of the Enlightenment.
It's odd how the article tries to connect Yacob to the Enlightenment - it doesn't make logical sense, and so seems more out of the author's desire to see that connection.