I guess. I mean, I'm not chomping at the bit to see him, I really don't get the hype. I get that people always want to see the prospects and that backup QB syndrome is a thing. But there's a lot of holes in his game. SG says he could be a younger Mancini...IMO, Mancini output is the best case scenario for him.
I don't think Mountcastle is a super, can't miss prospect, he's also not a JAG. He's somewhere in between. If the Orioles feel that they can coax better performance out of him and develop him better, fine. And if they want to play the service time game, well, be upset at the infrastructure that makes it so, not a the Orioles for playing within the rules.