Sorry i kind of agree with their decision unless the TS person took anti-androgens before puberty. Otherwise it is kind of unfair. I mean technically she's been on steroids for years before she transitioned, how fair is that? Transitioning late does have effects on body and muscle mass as well as bone structure. I hate to nit pick at it but i would say if your TS and got treatment before puberty ok, if not then not ok.
I mean look at me, i have the strength of a woman no problem, i can't lift 100lbs, i cant open a pickle jar, but looking at me, i do appear to have more muscle mass even though i dont exercise my upper body, and am still able to perform in sports with much more endurance and intensity then a GG of comparable age and build. I work out almost everyday so i notice this. While our legs look the same and our pace is the same, i might be on resistance level 10+ on my workout, but all the girls i see that resemble me are on 8 or less.
Lets be honest about this, it is unfair, but then again should a gg be barred if she has too much testosterone in her system? Its tough when their is no standards and hard to judge since athletes are supposed to excel. Technically a GG's with testosterone issues is natural (all contained within their body) and not artificial like HRT so that would be a difference. hmm..