He's giving his professional judgement, and he has passed the full reasoning to the CCRC. He has explained fully how the panel conducted their double blind peer review, reached agreement, and put all of their names to the document.
I am afraid that you would probably be able to find something to complain of however he handled this.
If he had gone straight to the CCRC without sharing anything, you'd find that suspicious.
If he had shared all the medical details, you'd object to that.
If he were working alone, you'd ask why he had no support.
So here you seem to suggest there is something wrong with his perfectly sensible proceedings: working with other experts, providing a summary to press and public, sending the details to the CCRC. I don't see it.
You will see people online who keep scraping the barrel, flailing around complaining of everyone and everything to distract attention from the key facts. It's easy to get caught up in their tribalism and end up arguing about tangential points that make no difference. I'd advise you to try to sit back and think: how much closer does any of this carping about people's perfectly rational actions get us to knowing what happened?
Fortunately, more and more people are aware of the problems with Letby's convictions. I liked the ITV documentary because it packed in lots of information and showed where it was coming from. It really is worth watching. It's on YouTube now for anyone who can't get it on ITV