Captain Bligh sailed 3,600 nm in 47 days, to reach Timor, in what is one of the greatest feats of survival and navigation in nautical history. In his open, 7 metre boat, he had a sextant, a pocket watch but no charts. He saved all but one of his 18 crew.
In comparison, these pirates had less than a tenth of that distance to go and had only to steer west to ensure landfall. Rank amateurs. The next lot should make sure they take round-trip fuel!
Of course, any leaks in their boat would not have helped.