The discrimination part comes in when the decision to use it is made. In your example that's a huge technical flaw that makes the technology useless for a large part of the population yet someone still chose to implement it in a way that would affect people's lives.

The technology is cool on its own but why does it need to be used if it doesn't work correctly? If you were the person making the call and you knew the technology didn't serve all of the people it's supposed to in a fair way and you still choose to use it that is discrimination.

Maybe it was initially a bug but once it is identified and there is no real attempt to fix it or make a work around, that would also be discrimination. It's not the bug that is discriminating it's the people who allow it to persist intentionally.