I find the arguments made by the panel of experts very compelling. If they are putting forward that in all the cases the babies died because of inadequate care, rather than deliberate action on anyone's part then I can't see how a retrial can take place.
It must be truly difficult to defend yourself against accusations of murder in these circumstances, especially when in such a long trial all the prosecution evidence was presented and then the defence after that, rather than being able to counteract things as they came up.
AFAIK the only "admitted" cases of harm were the attempted murders with insulin where the defence and prosecution both stated that someone had to have introduced insulin deliberately to cause harm. This seems to have been debunked since, but at the time all the defence could say was that "someone else" had harmed the babies. Also the timing of the insulin readings relies on another nurse picking the one insulin spiked iv bag and giving it to the baby that was already being "poisoned", which seems like a stretch.
I also don't find the prosecution's case particularly compelling because it seems that the facts are being bent to fit the crime. The fact that they had the door swipe data wrong in the original case but still felt that they were able to use it means that it wasn't really evidence of anything.
The handover notes presented as a "trophy" don't stand up to scrutiny when most of them don't relate to the babies in the trial.
The handwritten "I am guilty" notes just seem like a character smear when taken with all the other notes she made.
The facebook searches (31 out of thousands she made over the period) to my mind just show that she used social media a lot.
Things that have come to light since the Thirlwell enquiry like Dr Jayaram's testimony that she didn't call for assistance for a baby when his own email contradicts this.
At various times they were "the sickest babies" or they were unexpected collapses because they were recovering and "ready to go home".
Despite being online a lot and apparently not hiding things like notes or facebook searches, there was no evidence that she ever searched for the various methods said to be used in the case - injection of air into bloodstream, insulin, liver damage, overfeeding, smothering etc. and they are all over the place. I'm not an expert on serial killers but that seems like a lot of diverse methods.
She's also very unusual for a serial killer in that there doesn't seem to be a build up - no earlier injuries, no harming pets, no traumatic upbringing.
In a hospital which was clearly struggling with staffing and hygiene it seems far more likely that poor care and lack of timely treatment was responsible for the babies' deaths than any malicious intent.