Think his opinion on Moncada is a bit ill informed, especially when he in the next breath he mentions Eloy's advanced plate control as a huge long term plus.
Moncada is a very unique hitter. He's 11th in avg exit velocity, just a tick below guys like Schwarber and Yelich and coupled with his elite speed allows him a massive 379 BABIP. That will regress a bit but not too much, he should be able to produce BABIPs in the 330-360 range in his prime. His walk rate is down to 7% but I'd expect it to go back up next year as pitcher's start to work around him. His power is starting to become well known.
Law says Moncada will be an above average regular but he's already a borderline star even with the growing pains. If he finishes this season with 4+ WAR the sky is the limit for him in 3-4 years as he matures mentally. He could be a 6 WAR player which would certainly mean he lived up to his prospect billing.