Cut the noise: TikTok's decision is an independent strategic initiative, not a consequence of a competitor's figures.
Alphabet's successes in digital advertising have only a minimal influence on the realization of TikTok's event plans.
Strict regulation of competition in the United States, for example, could easily make such an event impractical for TikTok, regardless of Alphabet's performance.
Let's find the reason with the fewest variables.