It’s an 8 run game in the 9th inning. Everyone knows you’re getting a BP fastball on a 3-0 count. I agree hitting someone, especially someone who had nothing to do with it, is dumb. But there’s a reason 99% of people don’t swing in that situation.
It’s common strategy to take a pitch on a 3-0 count unless it’s a power hitter in a close game. Everyone knows a grooved fastball is coming. That’s what makes it cheap.