Great insightful post. I'm finding it somewhat alarming that there have been many posts jumping to conclusions, assuming that EP has deliberately caused these deaths. Good to read your post Observe-don't-Absorb.
The scenarios which you mention are all entirely plausible IMO.
The reality is that we, the general public, know very little at the moment of the official facts of this case, but there has been a lot of speculation.
I can't help thinking that, if EP were entirely innocent, the situation in which she and her children find themselves would be a true nightmare, which could cause serious and lasting emotional trauma.
MOO IMO