OIDC is not a silver bullet either and has its own set of vectors to consider too. If it works for your org model then great, but it doesn't solve every common scenario.

Trusted Publishing addresses the vector here, which is arbitrary persistence and delayed use of credentials by attackers. You're right that it's not a silver bullet (anything claiming to be one is almost certainly a financially induced lie), but it eliminates/foreshortens the attack staging window significantly.