I'd love to try them, see if they are more rigid, and yeah... save ~50g
I'm still a bit sceptical on 2 aspects.
The carbon spokes, how easy it would be to find and replace a broken one where you ride.
A no holes rim to avoid the tape is not possible with them.
Then the hubs, I prefer to stick to a known brand especially DT-Swiss.
Multiple times they saved me with their available range of free hubs or end caps.
To service them, or because of an order mistake, or to reuse the wheels on another bike or changing the transmission brand.
That said, only a few bikes I've built, came back with broken spokes, and carbon ones should be stronger.
Hopefully they designed the hub to have a single size, so 4 spares would save you in most cases.
Using a steel spoke temporarily should be possible too.
Riders who change their transmission or want to reuse their wheels on another bike is not that common either.