With popularity of gravel bikes I wonder why no manufacturer copies most popular gravel bikes. You could buy SL9 knock offs and Y1rs before they were even announced, but yet to see Crux 4 or 5 despite their popularity.
Crux 4 selling point, same as Aethos, was being super super lightweight using very advanced layups and high-end carbon
Chinese brands are pushing frames much heavier using cheap carbon = they cannot replicate those frames at all, so no point trying. Although now we have brands closing on this territory but they cost a lot more and don't really do knock offs. Like Evolve Cima and Incolor frames. Both using high end carbon fibre layups but also cost a lot more.