Quickly writing something serious before Purple_twiglet gashes this; there are big gaps in what we are being told. Did Ivan leave them enough fuel to make land? Did the navigational equipment they didn't have include a magnetic compass (considering that the averge paper readers' navigational knowledge doesn't extend much beyond "Satnav")? Were any of them competent to be in charge of a boat?
Being cast off 300 and a big bit miles from shore isn't that demanding is it? All they had to do was point West and keep going. Not like Capt W Bligh making the 3,600 nm, 47 day voyage to Timor in a 24 ft boat carrying 18 souls.