I agree with that. After some announced bombshells that never came, the solicitor stays quiet.
If my theory of a chance find from bigger darkweb investigations turns out as correct, the solicitor could be assuming a big avalanche of accusations could become present. By now, it is a manageable verdict, according to MM. The possible evidence against CB is managable by existing files and some witness statements from the media.
Like
@mrjitty comprehensible and frequently states, what is known is not much that could justify calling someone a murderer in public.
But if the major clue in the MM case is buried in the bigger darkweb BKA investigations, FF should be groping in the dark about the things, he will probably have do deal with. So it's better to remain silent and not to focus to much on the vanishing out of 5A IMO. Because if footage of MM may exist on the darkweb, she had been removed from there. So the circumstances around that shouldn't take the major part in that murder case. Especially if CB may haven't took her by himself for example.
Telling what they have wouldn't just jeopardise the MM case but maybe many others either. That child




dark web thing is way bigger than we might assume.
And if my theory turns out as true, the public investigation has just one target. Finding more evidence like footage and at least one dead body.
JMO