"Vulnerability" means able to be wounded, hurt. Not a good thing. It sets off our fight or flight instinct. Our fear and desire to protect/shield. Why embrace it? Some vulnerability is definitely not good. We mustn't embrace vulnerability imposed from the outside: abuse, manipulation, oppression, violence, intimidation, deception, codependency, etc. These are wrong, hurtful; need to be resisted, changed.
One of our negative vulnerabilities is to manipulation. Messages from parents, peers, society that we internalize and impose on ourselves in many ways. Comparison /competition, shame/ fear/ loss of identity, withdrawal /disengagement. Advertising: "I'm not _____ enough." Shame: "I am a bad _____."
The Gospel stands against every manipulative message of shame and inadequacy. Jesus says, "I know, but I love you! Follow me and we'll have great adventures together. We will change my world."