Is a wife considered divorced if her husband said to her in a moment of intense anger, "Let her come down; it's better than me divorcing her"?

What the husband said is not a conditional divorce (talaq mu'allaq); rather, it is a threat and a warning that does not result in divorce. The promise of divorce does not take effect, nor is it obligatory to fulfill, nor is it recommended. Therefore, divorce did not occur due to the wife's failure to come down.