I don't think the two organisations 'pushing' these - the UK national health service and a humanitarian organisation - expect that the emojis will or should be

I don't think the two organisations 'pushing' these - the UK national health service and a humanitarian organisation - expect that the emojis will or should be used solely to represent menstruation. But they will make that a possibility for the first time. And the likelihood is that that will be their dominant use. By doing so, they hope to make talking about menstruation more normal. Your comment has almost nothing to do with the actual article. It reads like pure reaction: you don't like feminism, so you don't like this.