@daveyf You are certainly welcome to disagree. You are stating that they are low tech because you looked inside and I assume did not see the bracing you expect when looking at an expensive speaker made from wood. And, when you remove the crossover and/or drivers, they are quite lightweight relatively speaking.
The materials Vivid makes their cabinets out of don't behave like other common materials (MDF, Baltic Birch, etc...) that are used in speaker production. The combination of the shape and the materials (fiberglass composites) make them behave very differently. They are largely hollow though the Nautilus portion of the top of the Giya does have bracing.
The materials they use are commonly used in the transportation broadly but aerospace industry especially due to the extraordinary strength to weight ratio that they deliver. That, combined with the circular shape leads to exceptional strength and rigidity. They also state that they heavy up on the composite in certain parts of the speaker where added strength is required. These are low mass designs which is very different than almost all manufacturers in the marketplace.
Let's also remember that these are transmission line designs to clear airflow is essential.
I use very similar materials in the production of my Nightshade speaker which is fiberglass over a DuPont Nomex core. My other speaker carbon fiber over a Nomex core which is similar to the panels used in the Wilson Benesch. Mine are prefabricated and flat, thus my cabinets are rectangular. This keeps costs down as it allows me to avoid expensive molds that Vivid and WB utilize. It also means my performance is not quite as exceptional.
Due to the high cost and difficulty of working with the materials, I use an aerospace company to make my cabinets whose primary business is the interior of private planes and helicopters.
My opinion is that using these more advanced composites that are allowing for them to deviate from traditional designs is pretty high tech relatively speaking. As I said, feel free to disagree, but IMO, this is one of the truly unique and tech forward designs in the marketplace.