Sounds like an opportunity event to me; just playing around, and there was no negative blowback as far as they are concerned. So, “that was fun; let's do it again!”
Are orcas teaching each other to sink boats?
Traumatized’ Orca May Have Taught Other Whales to Sink Boats
After a number of instances in which orcas appeared to purposefully sink sailboats in Europe, some researchers are theorizing that the killer whales may have taught each other to do so in the aftermath of a prior traumatic incident. But the reason why remains up for debate.May 25, 2023