I"m calling shenannigains here. I've gone to church all my life and never once was anyone kicked out. And, seeing as it was probably a little kid, we've always had little kids with books, toys, and even game boys (with the volume turned down) at church. Little kids don't have enough attention span to pay attention to a sermon. It's why you bring something with them to entertain them. So yeah, unless there's proof, then I'm not gonna belive this.
I also agree that I seriously doubt that GMA would bother with telling the exact character that the tamagotchi had evolved into, even if this story is real.