I agree with Will Clark, Chris Young, even Albert Pujols (but for different reasons than he stated). He needs to stay up.
Every pitcher he's seen has said, "I'm not going to be the one you beat" and has pitched him like he was, well, Juan Soto for lack of a better comparison in this instance. So many pitches that have painted the corners inside, outside, up, down. He's really gotten a baptism by fire.
So after 100+ plate appearances, reevaluate. I think he will have had something click in the next week and all of this hand-wringing will become history.
If he's still struggling and then sent down, will he miss seeing ML pitching? Perhaps. But it's been noted that the Os farm system tries to indoctrinate good pitch selection habits before they're brought up. If he didn't have enough time to get that, it could be the one thing he'd gain that the ML just moves too fast for.