Ahh yea the study came out a few days ago. It is about blue whales off Patagonia. Down there it’s almost 90% commercial fishing boats (not cruise ships.). And no, they definitely aren’t following boats, they’re just going about their business and being hit.
https://www.msn.com/en-gb/news/worl...aNtJ97reafY8oISQrWmRXupoJwQAk4M63W2zWT51FGiTg
To answer your question, it would be nice if the boats slowed down, but most ships, especially in international waters, are under no obligation to do so, and while in the US they could be fined for hitting whales, as I mentioned, strikes are almost never discovered or reported. They do typically slow down or change course if they see whales in their path... the problem is... you really don’t always see whales in your path, and often when you do, it’s too late to slow or adjust course.