I think there's room for more small-scale corporations in vtubing. A good corpo is useful to talents in a variety of ways - providing advertising and branding, providing quality models and art assets to help stand out against contemporaries, combining people together with different skill sets to help talents develop, making networking easier, assisting with talent management, organizing merch and so forth. Whatever Kawaii's problems are that led to its closure, it's not the lack of a market for internet anime girls, an inherent problem with the existence of vtuber corporations or the value they provide to their talents.