The comments upthread about the length of time that would be needed for the Tavi to put together that peer-reviewed study have resonated with me.
I joined a medical trial last year (something where patients need to have an uncommon pre-existing condition to qualify for treatment, so we're hard to recruit). The professor running the trial is a medical doctor with a full NHS medical research framework behind him and an international reputation in his field. When I joined the trial, it was made very clear to me that his study comprised of a control group (qualifying patients who'd joined the trial, but elected to take NO treatment), patients who'd decided to follow a traditional treatment course (already passed medical trials years ago), and then finally a group that was taking the experimental treatment course. We will be tracked for decades, as the outcomes will be life long.
If I apply that model to the Tavi, then they would have had to have tracked patients who would have qualified for puberty blockers but decided not to proceed with them, taken them but then decided not to go on to cross sex hormones (the "it's just a pause" hypothesis), and then finally the group that kept going on the full medical transition path. They would need sufficient numbers in each group and they'd need to be keeping an eye on the long term benefits intended by each path.
If what we've been hearing is the whole story, haven't they basically said that ALL of their qualifying patients opted for blockers, and then nearly all of them went on to cross sex hormones? And then that they're not following up with any of them longitudinally?
If that's the case, then that doesn't sound like much of a study. At least, they didn't set out to gather evidence on the effectiveness of puberty blockers being used for the purposes they were prescribing them for.