I'd not heard of this before, and just spent my lunchtime looking at it on the net.
All I can say is, considering they are unearthing tiled floors and tunnels, um, keep digging!
As for "Making Bosnia look foolish", it's hardly Borat territory is it?
I mean, surely the whole point is "I think something is there, so I shall dig to find out if I am right or wrong", as opposed to "I think there is something there so I'll take the word of someone who says there isn't and abandon the project in case I look silly".
Nobody linked with Archaeology at any level will ever look more silly than Tony Robinson walking about in his newly remade Seahenge replica saying "It's a bit like the feeling you get walking in an old church".