Yes; and we can look at the lives of this step mom and dad and clearly see that they don't "follow the rules" in general. We know the dad hasn't in a long time. Sex with the 15 year old babysitter for one example. When it was revealed that Anna was sexually assaulted by her first step mother's bf, my first thought was wondering how Tabitha reacted to that, having been 15 when she herself was first assaulted (and any "willingness" on her part is immaterial as adults are responsible to know better). Was Anna blamed for the bf messing with her?
Since the judge declined to close Shauntelle's custody hearing, we should soon be learning alot more. Her ex-husband and father of her children claimed that the teens were allowed to drink alcohol on the cruise and there may be much more lax and/or negligent parenting choices to be revealed.
Personally, I tend toward thinking the 14 year old didn't alert the parents to the awful fighting he heard in the cabin because fighting was a common routine way of life for them. As long as they didn't kill each other, it was juat no big deal, kids will be kids. You know, "caring for each other in the right ways". Whoops...