Speaking as the parent of a minor league player I can say with some certainty that any promotion, be it for 6 games or 60 games sends a positive message to the player and is a great emotional boost. Keep in mind too that these guys are young; packing quickly and jumping on a plane to fly half way across the country to arrive just in time to throw on a uniform and appear in that first game is an adventure they look forward to. Heck, they've been living in rented appartments with rented furniture eating fast food and traveling for hours & hours (if they're in Billings its tens of hours) by bus. A 3 or 4 hour plane flight is a piece of cake.
My congrats to all of them, I know they're feeling good about it right now.