It's right there in the OP:

Metacritic has put together its annual industry summary, revealing that the PlayStation 4 was the console with the most quality exclusives in 2016. According to the site's data, the system landed 13 exclusives with a Metascore of 75 or above, while the Wii U and Xbox One could muster just three and four respectively. To its credit, the Nintendo 3DS performed best in this area, though only 57 games were rated for the handheld overall, compared to a gigantic 445 on Sony's home console.

The hyperlink in the above paragraph should direct you to the source that shows that the 3DS had 20 quality exclusives in 2016, which is exactly as many as the three home consoles combined had.

The tables in the article have 2016 headers, so the numbers for all five systems are only for this past year. It would be strange if the 3DS had had only 57 games rated during its entire lifetime.

The headline smells fishy. "PS4 is the console with the most quality exclusives in 2016! Then there's that thing called 3DS with 60M users which actually has more 75+ metascore games, but fuck it. Is that even a console?"

The headline smells fishy. "PS4 is the console with the most quality exclusives in 2016! Then there's that thing called 3DS with 60M users which actually has more 75+ metascore games, but fuck it. Is that even a console?"

Nope, I think it falls in line with those Leapster things. 🙄