This is consistent with my understanding, which is that there really isn't much data. Small studies that look at children using medication to delay puberty to *the typical age range* should be considered v weak evidence that there are no long-term effects to delaying to e.g. 18
That said, I wouldn't be surprised if resuming puberty after blockers without HT usually causes no problems... but the clinicians Singal interviews seem to think it's a very good protocol, too. I think "is this piece terrible?" sort of hinges on how common HT/surgery is for teens