Looks like it was planned to me.
I had the same thoughts. Minor league games are notorious for featuring between innings hijinks like this. Wouldn’t be surprised at all if this was staged. If so, good job to the promotional staff for making it look so real!
Indeed it was.....but that's the nature of minor league baseball. Fun for the family and especially the kids without mortgaging your house to pay for the tickets, parking and the food and a chance to see good, up and coming kids that might one day make it to the majors and who are willing to interact with the fans and sign autographs and take pictures with the kids.....
Where I live, there's been serious talk for a number of years about building a minor league stadium but the politics involved have made it impossible. In the past 30 years I think I have been to a Detroit Tiger ballgame maybe 3 times. If a minor league team were to come to fruition, I'd be a regular hangout at their games.