The author of that article is clueless.
At last year’s world championships Lin took a swab test which, according to the International Boxing Association (IBA), indicated the presence of sufficient male chromosomes to disqualify her from the women’s event.
"Sufficient male chromosomes"? Does he think that we all have a mixture of male and female chromosomes? But he seems to be accepting the IBA's statement that Lin has male chromosomes, although he doesn't understand that that means Lin is male. If he actually understood what he's said here, he'd realise that this makes the rest of his article complete nonsense.
No one knows if she [Lin], like Mboma, is what elite sport calls a DSD athlete, which means a person with a different, less linear personal biology, that may convey certain performance advantages.
No one? Lin probably knows. Also Lin's doctors. And the IBA, who carried out tests which resulted in Lin being disqualified from the world championships. But none of them are telling us. And the IOC may also know, but it suits their purposes to pretend not to know.