The amendment is pretty stupid
13A Meaning of woman or female
In any legislation, regardless of gender identity,—
(a) woman means an adult human biological female; and
(b) female means a human biological female.13B Meaning of man or male
In any legislation, regardless of gender identity,—
(a) man means an adult human biological male; and
(b) male means a human biological male.
All it does is shift the definition burden from woman to "biological female" and man to "biological male".
Obviously this is a not so subtle dog-whistle to bigots out there in NZ. Effectively this bill raises a non-issue and then doesn't even bother to solve it.