I think this plays out more with fan bases, especially fans who know ballpark factors in the minors. It's easy to forget, I'm reminded this morning that Polar park is a hitters park. One thing we also don't take into account, is the away parks these prospects are playing at as well.
Now, I could be mixing these two up, but I believe the Stadium at Salem kills flyballs and Greenville is more homer-friendly. That's why guys like Roman Anthony get the promo and start killing the ball.
With that said, FO isn't looking at statlines and home runs when promoting guys. They know what's what, and they're looking at so much more than the stat line, they're looking at contact rate, zone contact rate, chase rates, hard-hit rate, exit velocities etc etc. These things stay exactly the same no matter what ballpark you are in.