Taken with no implicit qualification, “error and forgetfulness are lifted” would imply that human beings no longer experience either; that is plainly not the intended claim.
Spoken wording: error and forgetfulness are lifted.
Required implicit element: the relevant legal ruling or liability attaching to them is lifted in the intended scope.
Iqtida is not simply another interesting implication; it is the indispensable completion required for the text to make sense as intended.