Isnt that true for every system?
Like when Intel's chips were shown to completely disregard security when speculatively executing instructions, it wasn't just a new vulnerability; it was a whole class of vulnerabilities that was now open
The client here is the enrollment software, not "Aadhar" (whatever you meant by that). The Aadhar service should haven been authenticating enrollment operators on the server side, instead of relying on the enrollment software to verify identity (that too by via biometrics, which is NOT authentication).