It sounds like all the judges involved are freely admitting that it's a messed-up corner case. And none are claiming that the current laws (for such situations) are optimal, let alone "right".
Not mentioned: All the moral issues around Mr. Informal-Donor showing up again - 7 years later - and wanting parental rights.
The Guardian isn't the best of sources, but...
It sounds like all the judges involved are freely admitting that it's a messed-up corner case. And none are claiming that the current laws (for such situations) are optimal, let alone "right".
Not mentioned: All the moral issues around Mr. Informal-Donor showing up again - 7 years later - and wanting parental rights.