Too much focus on stars like Trevor Noah that gen Z / millennial didn't care about. Too "production"-y and "professional". Majority of content on TikTok feels more down to earth and relatable and actually interesting. It's the same reason why Vine was popular back in the day, it just felt more human instead of another entertainment product.
I'm talking about scaling challenges around the studio system for generating content. Top-down creativity can not scale to meet the throughput of decentralized user-generated content.