We don't think there was much wrong with this picture in the first place. It's a nice shot of two people having a great time out on the water. They're happy and smiling. They wanted Fridman to make it look like they were in danger, but if he'd put a couple of sharks in there, it wouldn't have fit their mood. Who would look that happy about being surrounded by dangerous creatures?
As many people who write to Fridman have now found out, you have to be very careful about how you phrase your requests. 'Dangerous waters' could mean anything. They didn't want him to put them in a simmering pot of pasta, but it's water, and it's definitely dangerous! Plus, the smiles make more sense now. If you somehow found yourself in a situation as absurd as that, laughing about it is probably all you could do.