Disagree. Animal training and behavior is a vast field of research humans have studied for hundreds of years. We're not starting from scratch. And we already interact with orcas constantly, based on these reports. It would be straightforward to experiment.
Interacting in any way with the North Sentinel folks is forbidden.
Yes, but we already communicate with orcas, and with the Sentinelese we can't communicate with them because we can't contact them. Communication and understanding of language are two different things. I have great communication with my dog, both ways.
Because every time in history a new group of humans was discovered we could eventually communicate, but have so far managed to talk to exactly zero fish despite constant contact?
Interacting in any way with the North Sentinel folks is forbidden.