Aren’t people still offered the option of a termination for cleft palate? I can see how she might have been presented with all options available to her but that’s not the same as recommending. But as said above, I don’t know much about her but what I do know would not make me put much store in what she says.
On Tennant, and Page to a degree, I think there’s a sunk cost fallacy of sorts going on - if your trans'd yourself or, worse, trans’d your pre-pubescent child, what can you do other than wholeheartedly try to convince yourself and others you have done the Most Loving Thing? When you’ve voided yourself of all sexual function and committed yourself to a (shortened) lifetime of medical intervention and hormones and you’re STILL unhappy - it must feel like turning a tanker around.
I have so much respect for detransitioners and parents who watchfully wait instead of unthinkingly affirming because that tit must be hard as hell.