Hitting: he was projected to be #17 in WRC+ during the 1st month, he's basically held steady at #21 but that's mostly due to Lindor/Ramirez and some others rising.
Pitching: he was #6 in ERA among starters but he's now projected for a half ERA higher. So guys like Buehler/De Grom/Mcullers/Morton are now ahead. Garrett Richards is just behind Ohtani, so much for Richards being shit. The dude is a good pitcher.
The projections are projecting the FUTURE: so Trout's steamer statline is over 105 games since that's how much of the season is left they're projecting him for. So Ohtani's current ERA, BA is included in the formula to determine his future statline, but it is not calculated into the statline. It's all what they predict he will do in the future.
BTW OHTANI IS AWESOME, but people on this board will make fun of any player but the second you say anything about Ohtani or Trout it's like a personal attack. if you took a compilation of remarks made about the other 23 players + Scioscia it would almost be cyber bullying yet if you say anything that isn't Ohtani/Trout are god then you're a hater.