I don't think this park needs juiced balls to play this way. It's 3000ft above sea level in a very hot/dry environment in a park where the wind consistently blows out and doesn't have the third deck to block out the wind. This park is one of the most hitter friendly parks in the PCL and the PCL is already the most (or second most) hitter friendly league in full season minor league ball.
I think a good example that illustrates this is the foul pop up Rengifo caught yesterday. That ball was ticketed for the stands but the wind blew it like 20-30ft and into play and that was on a pop up going against the wind. Now imagine how that impacts any balls hit to CF/RF that are actually riding that wind.