Drift has a connotation of not being in control.
I agree with this (though I think the connotations might be pretty weak). I think “value drift” also has weakly negative connotations even aside from that.
I think that, if we want to introduce a new term to avoid negative connotations or connotations of not being in control, “value shift” or “value change” would be better than “value enlightenment”. “Value enlightenment” would have strong positive connotations and connotations of having found the truth, and it’s also less immediately obvious what it refers to. It seems to me that it’s obvious what “value shift” or “value change” mean, and that those terms are consistent with the change being positive, negative, neutral, or of unknown value.
yeah, ‘shift’ or ‘change’ work better for neutral terms. other suggestion: ‘change in reveal preferences’