“The scheme will initially roll out only in the US. […] Apple’s neuralMatch algorithm will continuously scan photos that are stored on a US user’s iPhone and have also been uploaded to its iCloud back-up system.”
Researchers interviewed for the article would agree with your analysis. “Security researchers [note: appears to be the named security professors quoted later in the article], while supportive of efforts to combat child abuse, are concerned that Apple risks enabling governments around the world to seek access to their citizens’ personal data, potentially far beyond its original intent.”
Article link for ease of access: https://www.ft.com/content/14440f81-d405-452f-97e2-a81458f54...