I think this issue is odd tbh.
If a child needs extra help or support - regardless of why - then I can understand a parent seeking that out. But to be interested in an arbitary label n order to trigger additional support seems odd to me.
I genuinely have children at either end of the spectrum. One son has SN associated with severe ASD and his school meets his needs. My other son is exceptionally bright and was poorly served by his school , and his parents, until he went to his independent grammar school.
His prep school tested him and his classmates upon arrival and he hit level 5 across the board ( which apparently is very good). When he left at 11 he had just done the same sats again and scored level 5 .
He was terrified thatthe super bright part of his brain was linked with ASD and was bullied for being bright and hated the notice people took of his academic ability. He was a gifted rugby player and sportsman and he hated being placed in the 'gifted' box.
He has sorted through these issues and has just gained 6A*s and 4As at GCSE - very nice but not exceptional.
I would not class him as gifted but very bright and I think withthe best of intentions his needs were never met - much cleverer children must struggle even more.
But he loves his friends, his rugby, has a wide range of interests and is doing fine. So for me it is the perfect outcome.
I am now not quite sure what point i was trying to make other than sometimes placing children in certain boxes is not ultimately in their best interests and when truly gifted children are bright enough to manipulate and conceal their intelligence , picking 10% to stick a label on seems to me a somewhat nonsensical, if well meaning, policy