My take is this:

If we can eject the announcer because he is "team staff", then it stands to figure that the defensive team in this case did in fact obtain the information illegally. Thus, the announcer is ejected, and you can refuse the appeal because it is not a "legal" appeal.

Seems tidy enough.

The dad in the stand stuff is something totally different. Dad is not "team staff", and we have no jurisdiction over what they do. But we do have jurisdiction over the announcer and his actions! In my opinion, the announcer using replay equipment is no different than the coach himself using it!