Well, no one can ever be SURE a minor league player will do well in the show, but minor league stats tend to be a good indicator, particularly AAA stats. On top of it all, I just like the fact that he hits the ball very hard, can go the other way, can drive the ball the other way, and can hit pitchers that are right and left handed with no drop off.
Your observations are not wrong, but it's hard to take too much out of his major league stats because he rarely played consistently and never against lefties where he's had success, success that I think helps him also hitting right-handers.
The thing is with Stowers is at times he will look very bad, sometimes several PAs in a row, and just when a pitcher thinks they can beat him inside he turns on one for about 430 feet. I've just seen him do it so many times in the minors.
I agree, he's adequate at best defensively, but I think he would be a fine fit for Camden RF.
So ultimately, do I think he's a future All-Star? Probably not. Do I think he can be league average 2-4 WIN major league outfielder, absolutely. He just needs someone willing to send him out there everyday.