1) Let's ask a simple question here, if you saw someone falling into a fountain because they were texting, what would be your very first response? Would you immediately run over to help them, scared that they might have broken a hip, or would you actually just laugh a bit first. Let's imagine that they're not even texting, let's say that they were pissed, staggering everywhere, and fell into the fountain. The first response of most people would be to laugh. This is why You've Been Framed is still on our televisions, because there is something inherently funny about people ending up covered in water because of an accident. The issue is whether they should have posted it, but your third paragraph seems to suggest that you think there's no humour in the situation at all.
2) If you watch the clip with sound, you clearly hear someone saying "and this was at 4 this afternoon?" It's not something that's just happened, it's the camera recording system. They're not playing it back, recording it and laughing at it while she's down there, drenched. Who knows why it took 20 minutes to help her? Maybe because they thought she'd get adequate help from the store? Or maybe they didn't even see it? Maybe they got told about it by the store staff afterwards and reviewed the tapes, I mean, how many cameras does an average American mall actually have?
I actually understand exactly why you support her action as well, because I think there has to be lines in the sand based on privacy and CCTV usage, and someone has to do something about it from time to time. Unfortunately she comes across as someone who just can't laugh at herself, and it's so trivial when compared to really bad breaches of privacy that occur and aren't flagged, I just think there could be less time spent on this and more on the serious matters.