[victory]

Hello,
I'm looking at LL RB 7.07 in which during a squeeze attempt and the catcher moves in front of or on the plate or contacts the batter or bat. The umpire is supposed to rule a balk on the pitcher and award first to the batter on the interference. Why not just call interference and give home and first due to that? Why the balk call - is that simply to justify the award of home?