Your source is not a credible one. It is merely speculative armchair history along the lines of a Gavin Menzies or Graham Hancock.
> At some point between 610 and before 594 BC, Necho reputedly commissioned an expedition of Phoenicians, who it is said in three years sailed from the Red Sea around Africa back to the mouth of the Nile; and would thereby be the first completion of the Cape Route. Herodotus' account was handed down to him by oral tradition, but is seen as potentially credible because he stated with disbelief that the Phoenicians "as they sailed on a westerly course round the southern end of Libya (Africa), they had the sun on their right"—to northward of them (The Histories 4.42).
[1] https://en.m.wikipedia.org/wiki/Necho_II#Phoenician_expediti...
Much of it is pure speculation, and rot, but his direct observations -- he actually does go places, and takes copious, excellent photographs (his wife is a pro) -- have proven reliable; much more so than his armchair critics. He is scrupulously careful to distinguish observation from speculation, something many of his critics could learn from.
Ignore both the speculation and the armchair critics, and you may learn, too.