Comment by emilxix

Communicating assurance is challenging. Finding a balance between "FAR/FMR/FNMR metrics" and "it's safe to use" is an art. Apple's faceID. for example, claims "1:1,000,000 chance a random person can unlock an iPhone", which, I guess, is a good enough proxy to communicate assurance for the intended audience. Answering the question, yes we thought about it, but still a work in progress.