It's a mystery why they do this
Thanks for putting these images up. Yes, they are the ones I saw as well and I think somewhere else as well, although your ones are directly from the Bvlgari website!
I have this one too and, like you, I went in eyes wide open, as I examined the watch closely before taking it. I knew the bracelet was hollowed out and I only saw the images online afterwards.
However, it's misleading to put images up which suggest the bracelet is solid (or, at the very least, not scooped out). The actual back of the bracelet looks nothing like what Bvlgari have put up on their own website and, frankly, it's very disappointing. It's like they don't have courage of their convictions. My opinion of course, but why show the bracelet in a way that does not reflect reality?