I think what you are talking about is a problem. Having a medical diagnosis gives personal experience an extra weight in the social realm that's quite problematic. We should all get to say how impactful something for us and the medical folks can have their own standards for when they feel comfortable intervening.

That said, if that's what the author was trying to talk about, I think they are doing so in a way that unfairly indicts the medical system for assertions it doesn't make. They say "Apparently, that’s a disease", but as I said I do not think it is. I think they've misunderstood what makes a disease under the diagnostic criteria they list.

> We could just as well have a culture that treats grief as a normal part of the human experience.

That culture does exist. Even in this article there is an experience of grief that's considered normative in the medical community. Including, I would argue, the authors' grief. I would argue that the medical approach to grief is actually better than other western treatments of grief.

I agree that western cultures (and US culture in particular) is horrible about grief. We want people to be robotic and predictable and not make us think about loss and be sad in private and a whole mess of awful, inhuman things. But I don't think that pressure either comes from the medical community or is furthered by how the medical community talks about grief.