Im with you. I think there are legitimate cases. The facts of this one convince me this is not one of those.
The stories describe longer drives. None describe a decision to turn that occurred 40 seconds after leaving where the parent was parked.
Here's the thing about those other stories, imo, and what DOES make RH's case unique.
Unlike any other case I'm aware of, RH's window of opportunity for forgetting can be narrowed down to those specific few minutes between leaving CFA and the intersection, at the latest.
We don't know how quickly other parents forgot their kids, precisely because their drives from home to work, etc WERE longer than RH's. Those other parents forgot, went to work or wherever, and didn't " remember " until hours later.
We have no way of knowing when and how quickly they forgot, because THEY had no way of knowing.
BTW...the fact that RH's window of forgetting was so short is not evidence to me that he couldn't have had FBS, it's evidence to me that he either did, or that he plain vanilla forgot. I simply do not believe the man planned to murder Cooper and feign FBS, then chose a route that would record his every move and would document his forgetting within minutes and seconds, making that forgetting seem impossible to many, and implausible to others.
Nothing could have been simpler than driving Cooper straight to work, parking where Cooper couldn't have been seen, and waiting until he left work to "discover" him. IMO, one has to turn things pretty much inside out to think RH premeditated killing Cooper, and it flat out is unbelievable that Ross knew of FBS and yet chose a scenario that was completely unlikely to be viewed as such.