It seems to me if there are actionable items that come out of it, then it will be productive. It is often possible (though not natural for most people) to frame

It seems to me if there are actionable items that come out of it, then it will be productive. It is often possible (though not natural for most people) to frame a complaint or criticism in more positive terms. In other words, "I don't like X" can become "We should do Y to make X better." Most people have no trouble being critical. Getting away from that tends to be hard work and can make it easier to accomplish things. /2 cents