A quick wiki check immediately reveals that whale sharks do not attack divers. In fact, the only whale sharks I’ve encountered so far seem to be noticeably smaller than average for whale sharks, meaning they’re probably juveniles, which are known to be playful towards divers. So bumping the raft seems pretty legit, since they’re playing, and their size means they might even be more dangerous in that respect than most, but I don’t think a filter feeder’s bites could draw blood even if it tried.
I understand that this game is purposefully playing into the whole Hollywood “Shark Attack!” aesthetic, much like Raft, but seeing this really bugs me. Even if you’re going to cut out all nonviolent encounters with sharks for gameplay purposes, inserting violence to a creature that wouldn’t do such a thing just seems gross.