My best is: they are saying it is worth taking a step back and making a prioritized list of our values. If we do this, we may place "being kind" over "being productive"
I think their warning here is about: what happens in a situation where being kind is NOT productive? Will you just drop it?
I think I agree with the broad strokes of this. My rebuttal is: the comment above this was just pointing out, for people who do not value kindness over productivity, that they are not in opposition. That you don't have to pick one or the other. You can have both.
We can get mad and turn away from people who do not share our values/priorities. Or we can show them ways that our value systems do not clash and it can be win win