> Doing it by hand (in photoshop or on a print) acknowledges the inherent bias that is involved in colourisation.
No, doing it by hand doesn't acknowledge that your interpretation is a fallible interpretation shaped by bias, just like translating a written work (e.g., the Bible, for a noted example where this has been done often without any such acknowledgement being conveyed) by human effort doesn’t do that.
Acknowledging bias in translation of either kind is an entirely separate action, orthogonal to the method of the translation itself.
No, doing it by hand doesn't acknowledge that your interpretation is a fallible interpretation shaped by bias, just like translating a written work (e.g., the Bible, for a noted example where this has been done often without any such acknowledgement being conveyed) by human effort doesn’t do that.
Acknowledging bias in translation of either kind is an entirely separate action, orthogonal to the method of the translation itself.