Game management

[Chess Ref]

I'm watching the game before mine starts. Bottom of 7th , 2 outs and R1 on 2B. Shot down left field line. PU comes up with "foul ball". Big ruckus breaks out. It turns out PU anticipated it being foul but it landed fair. I learned this from talking to him after the game.

So home team is not happy. PU and BU get together and then PU announces "fair ball " game over. Now visitors get to hoot and hollar. So they get together again and rule it a foul ball. Game goes on and of course home team eventually loses in 9 innings.

just looking to see what you guys/gals would come up with. My thinking is "foul ball" is a foul ball. You kicked it and you live with it. No changing it or rechanging it .

Would my thinking be correct ?