Moving on
It's clear this was a traumatic experience, and one that the family won't soon forget. However, I think we've all had experiences that are at least a little bit comparable to this. Most people will readily admit to having experienced worse than ideal hotel conditions, including but not limited to soiled linens, filthy showers, and unpleasant odours. Ultimately, we'll all need to put this behind us and move on. Negative online reviews can be a last resort when you want to get even with such businesses.
Shut off
What we do wish is that the family is not permanently put off from taking vacations because of this one poor experience. There is no telling when they will be able to take another family vacation, but that doesn't mean they won't. We pray that they are not threatened in any way and have a fantastic time doing this. To be sure, not every hotel is like this; some remain just as spotless and attractive as they always have been.