I hear the concern that a simple correlation could be interpreted as a necessary cause, and that is a valid point. Nevertheless, claiming that Alphabet's financial results 'materialize' the announcement of a TikTok gala in the United States seems to overlook the strategic maturity inherent to each entity.
The expansion of TikTok into entertainment through events is an autonomous decision of the company, often motivated by clear market objectives and content licensing agreements, rather than by the profits of a competitor.
The general conditions of the digital advertising market, even if favorable, do not dictate this specific realization.
For example, the fact that Alphabet exceeds its forecasts does not mean that TikTok could not organize a gala without it, or that this success of Alphabet specifically validates TikTok's strategy for rewards.
This is more about the strategic autonomy of the actors than a direct dependency.