Paul warned the ship’s master, and his Captors, that the voyage would not be successful!
As throughout the Acts there was special angelic/holy spirit cover, for those working towards the Gospel spreading in the Jewish world, Paul was given such warning, but as a captive could do no more!
As is recorded, they were shipwrecked on Malta, and none were lost!
When Acts 28:25–28 was reached later, the above-mentioned cover, and special Holy Spirit empowering changed, and the Jews were no longer the main object of Paul’s efforts, as per. the prophecy of Isa. 6:9–10!
The emphasis moved to spreading the Gospel to the Gentiles, which is still in place!