Other mistake: Micaela and her partner are chasing an RV. A man from the RV throws a propane tank in her path. You can tell from the sound and how it bounces that it is empty. When the car hits it, the tank explodes, and she swerves the car into the brush and the airbags deploy. Later, as she is driving on the same road she gets a call that the RV has been spotted. Her car shows no damage. (00:17:44 - 00:29:10)
Revealing mistake: Grace is lugging two suitcases down the stairs. She is acting as if they are very heavy. Ben offers to help and takes them from her. But he carries one with a bent elbow, and it is obvious that it is not really heavy at all. (00:13:30)
Answer: Only superficially. Manifest doesn't even begin with a plane crash, but rather a plane disappearing for 5 years with the assumption that it crashed, which turns out not to be true.
BaconIsMyBFF
In the particulars it seems different, but the overall plot is the same. A seemingly random group on an airplane experience a weird event and spend years trying to figure out what happened. Let's hope the reveal in the final episode is not as disappointing as "LOST" - they're actually all dead.