If you take "must" in the pocket-protectory overly-literal way, yeah, sure. But when you act generously and decent and take it to reference what is tenable and

If you take "must" in the pocket-protectory overly-literal way, yeah, sure. But when you act generously and decent and take it to reference what is tenable and acceptable, things take a different turn. And it is in that light that I approach the topic and the speaker, because generosity and decency are pretty good things.