I’d point out that it’s possible for SAML to be acknowledged as okay or “good for its time,” even, and also be acknowledged as today amounting to a steaming pile of crap that ought to be avoided and phased out wherever possible. Even if all its flaws were just the bad luck of existing before other things were invented.

We can’t change the past anyway, but ‘considering SAML harmful’ today may be the most reasonable position to take.