In Colombia is way more popular to eat a whole fish than a fillet. Honestly, eating a whole fish, to me, is a staple of how fresh your food is. If I could pick between a whole fish and fillet, I would pick the whole fish every time. This might sound unreasonable, but it actually tastes better. The flavor is probably given by the bones, fish skin, and all the other parts that a fillet doesn’t have.
If you ever have the chance to go to Colombia, and do a road trip, you are most likely to find this dish in the little restaurants on the side of the road (Specially if you are close to a body of water). I encourage you to try the whole fish, simple, traditional, and delicious.