I agree, it doesn't seem helpful whereas the actual work he is doing and the resources he has been able to provide have been hugely useful. I think it's possible to be critical of the approach to the media whilst respecting his contribution.
Well an 1800khz is a great gadget but it has limitations.
The local SAR also have a side scanner and they too are a very experienced dive team as are the police divers.
Now we've all been puzzling at the apparent movement of her body, if she entered the water here on Websleuths.
The police divers were in there within a few hours after the alarm was raised.
They would have noticed it too.
Yet they persisted and have access to all kinds of specialty teams and advice including coastguard and RNLI who study the scientific principles of water movement and the circumstances that affect it.
Yet, they persisted.
They persisted for several days though they saw what they saw when they entered the water, namely, that Nicola was not in that location.
Did they do it because they were foolish?
I don't believe for a moment they are anything but highly competent.
I'll put it to you this way- respect is earned.
Local police dive teams earned mine.
If I go missing in water and I had a choice, I'd pick the police dive teams if I had a choice.
Murky waters and muddy riverbeds fly in the face of sidesweepers.
After that, it's down to persistence, access the world quality databases and experts.