Instincts
The divers had good instincts and were well trained on the ocean as well as its inhabitants. These instincts kicked in. By that point, the divers knew they had no choice about what they would do next.
Nothing
Divers are typically taught not to disturb animals in their natural habitat. Especially when the results can be more disastrous for the diver rather than the animal itself. When the divers noticed the seals approaching, they did their very best to stay as calm as possible. They had been spotted…