From my experience, the reason you'd risk being vulnerable is there are some things you can't achieve without doing so, it'd be like trying to do surgery with a scalpel on someone wearing platemail, or trying to detect radiation with a Geiger counter behind 20 meters of lead, for some tools to work properly they're required to be in a position where they're 'vulnerable', like eyes.
I think it's sad that performative emotions & vulnerability seem to be a popular thing to have to signal for acceptance. Which in my opinion is worse than nothing as at least when you're not faking something it's easier to agree that you haven't really tried it.