Jesus praised child-like faith.
Which pretty much IS blind faith....
Does a child have any other choice BUT to believe what they're told, and to trust their parents? Do they have the intellectual development needed for rational thinking, fed by life experiences that allows them to detect discern truth from fiction?
Basically: do they possess WISDOM? Have you seen a truly-wise 4 yr old?
So Jesus' praise of child-like faith IS in praise of BLIND FAITH, as it goes back to the Adam and Eve account where they were created as child-like naives, craving for the WISDOM that was supposedly magically bestowed by eating the forbidden fruit.