Wow thanks for the update. And kudos to them for the honesty and fixing things.
I didn't know hubs could deform under spokes load.
They are learning things DT-Swiss, Hope, even Novatec and others probably know already.
The special bearings fix isn't great for the long run.
I imagine it is a three-fold result of:
1) engineering the hub to chase grams
-all things being equal, less material = less robust
2) the higher tension applied to carbon spokes
- all things being equal greater stress = greater strain
3) the non-ductile nature of carbon filament
- all things being equal, the force transferred to the hub will be lower with a ductile material such as steel, as opposed to carbon.
If one of the above didn't exist, the deformation would not occurred.
Of course, total armchair engineer on this one.