That’s essentially what they were doing, roles reversed us being the private charter. Our captain said something to the effect of “if I did that they’d report me” but I didn’t understand why he wouldn’t report them. It seemed to me those bigger boats were actually a threat to harming the whale. Our boat I think not so much (~39’) and we always jumped to the side of the whale whereas the bigger boats cut it off which in my mind increased the odds of a collision.

Edit: found the boats based on their names https://whalewatch.com/