(Quote emphasis mine)
That may be the case from your perspective and that's perfectly fine. The reason why I made a sad reaction to the announcement (and the update) is because mine is different.
To the best of my knowledge Discord requires sending all your voice data to their servers with only transport encryption, not end-to-end, so there's no reason to believe they aren't storing it. If you think conventional data breaches are dangerous, consider what would happen if a criminal element got access to a vast amount of such voice data (impersonation being only the most obvious one