These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Harsher in Hindsight: Judith Barsi plays Michael's daughter, who is almost killed thanks to Michael neglecting to warn his family that there's a shark nearby. She almost died because of her father, yeah...
Even harsher, she was suffering considerably from her father at the time she was filming this movie, who threatened to kill her if she did not return from the Bahamas when filming was complete.
Hilarious in Hindsight: The heroes use the shark's electroreception to confuse and enrage it. A few decades later, it was discovered that great whites and their relatives, such as the mako shark, have a weak sense of electroreception, which means their plan shouldn't have done much to the shark.
Tear Jerker: Sean's pleas of "God help me!" as he's being torn to shreds by the shark, while the blissfully unaware locals on the dock continuing to sing Christmas carols, thus drowning out his cries for help, can actually be very moving.