In my experience that is untrue. In any case, by staying significantly west of the channel entrance, you should see the red and green marking the channel well before proceeding into the channel.

Warren S/V Scuba Doo
Lagoon 50 (winner of best crewed yacht under 55 feet at the St. Thomas crewed yacht boat show).

https://www.cyabrochure.com/ebn/2307/pdyrX/6642/4///