It might be different from a technical perspective, but from a privacy perspective information about the user has been transferred to the advertiser, who paid F

It might be different from a technical perspective, but from a privacy perspective information about the user has been transferred to the advertiser, who paid Facebook for the privilege. And "at some later point" may not be that far-fetched, if the adtech company operating the fingerprinting code happens to sell their data to other companies, etc.