where we first see the shark doesn't line up with where his friend points, whenever he comes up there are no ripples in the water near him, the water is really still and the fins of the shark even go above
the water isn't that still. just watched it again and I agree the pointing is off but then sharks that size move quickly! and there is delay for it to move
I mean maybe its' just me but if I saw a shark..let alone one that size........... I wouldn't call it out like that guy does! Like bad acting trying to seem alarmed but comes across more comedic