Oh I think Mr Walsh, if his is the article you are referencing, well knows the physiology that someone with a particular DSD that only applies to men , and a transwoman have in common, and it is nothing to do with the kindly coverall of non existent “intersex”.
His agenda is about allowing male bodies to participate in women’s sporting events, and the way he does that is to smudge the edges, use ambiguous and downright misleading language , ignore the biology and scoot over anything which might sound as though male bodies could possibly have an advantage over female bodies.
Read the other article of his above about “shy” middle aged Lauren Hubbard, who despite his crippling shyness muscled his way into the NZ womens weightlifting team , knowing this cost a woman her rightful place as an Olympian, then has the cheek to “shyly” admit that he knew he never had a chance of winning gold, or any medal, but, it is implied, just wanted to be recognised as a female weightlifter, despite already having had a bite at the cherry in his previously unsuccessful career as a male weightlifter.
Nothing in the article about his age, when age for women in a strength event like weightlifting would be a huge and very limiting element as they approach middle age and the menopause . Nothing about the young woman whose place in the training and support programme he stole and who then missed out on her chance to show the world what she could do, plus the opportunity to earn valuable sponsorship and to eventually tell her Olympian story to her children and grandchildren. Nothing about the inherent unfairness of a body that has been through male puberty and still, despite his age, maintains that muscle mass and strength.