Nobody cares about wuwah because it's a harem game. That's pretty much it.
Normal people don't want to be associated with schizo ricecels and gooks, so they steer clear. This causes an amplification of the voices of most insane players.
Most creative fan artists, animators, merch creators etc. are women, which are repulsed by harem shit. This causes a barren community, with the only thing left to discuss is future banners and thinly veiled ERP about how each doll would suck the MC's dick.
Similarly, most art is soulless erotic stuff from Asians drawn in the exact same light color style that can be incredibly accurately copied by AI slop.
All they had to do was deliver on a Genshin clone with up to date tech, higher fidelity and more options for combat. Just copy the reaction system (which they already did in beta but removed) and have an immersive fantasy world, and they would have been very successful. But they just show narrow vistas and new dolls for the GOD MC's harem because they decided to appeal to chink incels.
Thank you for your attention to this matter.