It probably means that they are failing to provide the product. I have no real information, but my best bet for how this situation came about (handful of instal

It probably means that they are failing to provide the product. I have no real information, but my best bet for how this situation came about (handful of installations, growing very slowly, yet with no news after a large splash on initial announcement) is that the tiles are not durable enough to last the lifetime of the roof. That would be something that could come out of the left field, surprising them after announcement, and the slow trickle of installations is them attempting to iterate the product and make it better.