that is for men AND women. It's certainly not exact. I don't know who you ride with, but start looking around. You'll notice that bigger people width-wise are not the champion climbers. Both men and women, if they're much taller than I am, it is the narrow shouldered people who excel at climbing.
And i'm not talking about fat, nor sex differences, this is a general thing, not a specific thing.
You'll notice that shorter women can get away with more "apparent" weight because of that particular ratio. And i'm not saying that a person who does not match that ratio can't climb or can't climb well. I'm just saying they're going to have to work on it perhaps more than the guy who weighs 130 pounds and is 5'10".