The other big problem with the time dilation aspect is the scientist they originally sent to that planet to check it out beforehand couldn’t have been there very long at all. They must have landed, took a quick look around, and been like “hey looks good, thumbs up!”. I though the whole reason they sent a human to do that job is so the human could thoroughly check things out and might notice unusual things like massive planet-wide tidal waves.

To add to that, if you sent me to check out an unknown planet I’d first spend a considerable amount of time in orbit surveying the planet, looking for things like a livable temperature range, a non-poisonous atmosphere, reasonable gravity, and no massive planet-wide tidal waves before attempting a landing. Hell, even if I wanted to get to the landing part as quickly as possible I’d still want to do a quick survey of the planet if only to find a good place to land. Clearly the original scientist did none of that. Nor, for that matter did the crew in the movie, though I suppose I could kind of excuse them as they were in a hurry and they had the “all good” signal.