That story as told in your post isn’t an illustration of the value of “gut feelings”, it is an illustration of a flaw in the application of logic. They may have found no reason to believe that it wasn’t a Michealangelo (trying to prove a negative), but what objective evidence was there that it was?
Yes, it is. The experts could not identify the flaw because it was so minor, yet there was a flaw. Their senses did send the flaw to their brains and their brains did recognize the flaw. However, they could not bring the flaw to the immediate consciousness. To them, something was just “wrong” with what they were seeing, they just couldn’t immediately identify it.
I did not ascribe any value to “gut feelings,” and none should be. As I wrote, the proper response to any emotional or psychological “feeling” is to identify the feeling and then use logic and rational thought to understand what is causing the feeling. Most of the experts Gladwell references either fail to take the time to do this, or do not have the time to do this, thus the name of the book - Blink in the sense that you gain far more information in the blink of an eye than you can possibly cognate. The experts I specifically wrote about had a limited amount of time to evaluate the sculpture. Had they more time, they would’ve found the flaw since the flaw was indeed found after the museum bought the sculpture.
Experts in their field have trained their minds to such a degree that much of the data they base their conclusions upon is automatized in their subconscious (in the sense that they don’t need to bring it to immediate cognition and dwell upon it in order to make the proper conclusion). It’s like driving a car, or riding a bike, would be for you (I assume). You’ve spent enough time behind the wheel, or on the saddle that you don’t have to evaluate every piece of data (there is one car 2 feet to my right and 5 feet off my front bumber, the car to my left is 3 feet to my left and 2 feet in front of my bumber, I’m doing 59.5 mph, my foot is exerting 3 pounds of pressure and the accelerator is pressed half-way down, I am in 5th gear, the car behind me is 10 feet behind me and speeding up, the song on the radio is “Highway to Hell,” by AC/DC, my kids are in the back seat discussing “Medal of Honor,” etc. ad infinitum). Now, you just drive. But when you started driving, you had to process most of this information individually. Now, one might argue that you’re driving on instinct, but when you first started driving you were very much using your cognitive abilities just to get out of the driveway.
Experts in their field are several steps above what we do when we’re behind the wheel. Their “gut reactions” are no more instinctual, or innate, than our ability to drive and still give processing time to things other than driving. It is not an illustration of a flaw in logic because they’ve spent their entire professional lives honing their logic in that particular field.