Yeah I do find the industry is full of promises with little to no data. Look at EVERY hybrid boards spec sheet and they make them sound like they're going to be as good as a pow board in powder, and as good as an alpine board at carving...
They should rename them compromise boards, because that's exactly what they are!
Same thing with stiffness. Everyone mentions feeling stiffness, but has anybody here ever measured it?!? I did, I put my board on two binders, then placed stacks of paper in the centre until it touched the table. Unfortunately I haven't done it with any more boards so I have nothing to compare it to.
Theoretically you could build a machine to test a boards longitudinal and torsional stiffness.