It's about both, really. Data is darn near useless by itself. But from data you can easily infer things like age, gender, political affiliation, income and education level and so on, which can then be _easily_ used to swing an election.
I am not taking about the data I am taking about access to the data and the devices. This is G5 controversy all over again. It's a trojan horse which can be used by the CCP.
There is no ability to take them to court for misuse, no opposition media.