I haven't seen anything that low on him hitting, but I've seen a lot of hype - and his stats in Japan are ridiculous. His rank for 2016 and 2017:
Batting average: second (.322), second (.332)
On-base percentage: fourth (.416), fifth (.403)
Slugging percentage: first (.588), fifth (.540)
OPS: first (1.004), fourth (.942)
Survey of MLB executives - link
"There's no word yet on whether Ohtani is able to leap tall buildings in a single bound. He has yet to play in a single game in the United States after starring in Japan and signing with the Angels for $2,315,000 in December, and he had a platelet-rich plasma injection in his pitching elbow in October.
That didn't stop a group of club executives from anointing Ohtani as baseball's best overall prospect and best pitching prospect, making him the first player to earn both distinctions in MLB Pipeline's third annual survey.
Ohtani, who is ranked No. 1 on the Top 100 list and the Angels' Top 30 list, earned acclaim as the Babe Ruth of Japan, and there's less hyperbole in that statement than might be expected. While he was limited in 2017 by a right ankle injury that necessitated surgery in October, he won Japan's Pacific League MVP Award when fully healthy the year before. He went 10-4 with a 1.86 ERA and 174 strikeouts in 140 innings while batting .322/.416/.588 with 22 homers in 104 games in 2016.
"Ohtani's talent, athleticism and makeup are beyond compare," an assistant GM with an American League club said. "He's a once-in-a-generation player capable of things on the field we really haven't seen before."
While most teams think the 23-year-old Ohtani has more upside on the mound, there are clubs who prefer him as a position player.
"His present repertoire and polish make him a potential top-of-the-rotation starter already in 2018," a baseball-operations official with an AL team said. "If that wasn't enough, the offensive potential as a two-way player makes him easily the best prospect in baseball."
Random hype article: link
The first scouting director said he'd put Ohtani's raw power among the best of any player at any level currently. "I've been doing this 26 years, seen as many players as anybody, but I've never seen a skill set like this," the first director said, noting that the only real negative has been some nagging injuries that have made it a bit more difficult to see him. "This guy is polished like McKay with Greene's tools, but he's faster than Greene. There should be giddiness; no one has ever seen it. We'll see how it turns out."