It sounds plausible, though needs a lot more evidence than that single source.

Of course, even if proven, that would whip the LGBTQ+ community into a rage, because "you are trying to kill our identity with hormonal meds!!!!" The issue of insurance would come up, too. Why would a transition be covered if a much cheaper option of taking meds that "treat" the underlying gender dysphoria is available. There is also a bit of a misleading statement "once the underlying dysfunction is corrected”, if "corrected" means "taking a life-long medication that changes your natural hormonal balance and causes unknown and potentially dangerous side effects".