I'm confident the US Navy is capable of navigating in the dark
Those RHIB (Rigid Hull Inflatable Boat) vessels don't have anything in the way of radar, so line of sight is the only way to navigate, and it's damn difficult to do at night, especially if you don't have a Quartermaster onboard to navigate for you.
And, there's also the complication that one of the boats doesn't have a working engine. Waiting until morning is much safer.
Ever been out in the middle of the ocean late at night? It's pretty freaking dark out there.