I would see that as a valid topic for further scientific research, and its impact on sporting rules only becomes relevant when conclusive scientific evidence exists.Isn't the point the possibility of unfair/unsafe competition based on testosterone levels.
In any case the starting point here would be high testosterone levels rather than individuals with DSD. Now the overarching discussion has fundamentally been about finding excuses for banning certain individual(s) suspected/accused of having a DSD (independent of their T levels) while entirely ignoring other, more common causes of high testosterone.