While HSS can be "fun", the same factor that makes it so can also make it a nightmare. It's a mixed bag depending on school, coach, division, players, etc.
I've seen "targeting" and it typically happens to the same type of players. The ones with some name recognition and usually stems from the parents / coaches convincing their kid(s) to take those players "down a notch".
It really is a shame, and by far the worse aspect of HSS, the absolute mess that is introduced when the playing levels / environments are so random. I'm used to a quiet sideline nowadays as kids drive themselves to practices / games and the loud dad / mom on the sideline is now an exception, but it seems HSS is the place where the bad apple parents get together and ignite the fire. Yes, I know, it's not everywhere but IMO it's more prevalent than in the older age groups at club.
@Kicker4Life hope the kid stays healthy, and hopefully this serves as further experience for her to do her talking on the score board like she always does and take the high ground and not get sucked into the mud with those "enforcers".