Im not sure they got their attention because only initials were provided in the article, but i do agree with your sentiment. Also, art is such a subjective practice. If there was a mathematics case i would be much more compelled to believe this.
Here's one related to savant syndrome: "Daniel Tammet first came to worldwide attention in March, 2004 on international Pi Day (3/14 of course) when he recited, from memory, Pi to 22,514 decimal places."
However, Tammet has been a savant from childhood, so he's a case of a better-known phenomenon. He didn't suddenly acquire previously unknown unusual abilities in adulthood. (Learning conversational Icelandic in a week is amazing, but he already anticipated that he could do it!)
Actually, he had a different name and was a memory competition champion who practiced every day. Instead of mentioning that, he decided to blame his entire abilities on a fever he had as a kid. Not to put him down or anything, but a lot of it is PR.
Under the name Daniel Corney he even advertised PSYCHIC services. Definitely his abilities are incredible, but he also spent hours and years practicing them.