Yes but just like larry grahm and george benson, those who were famous before being jw’s stay famous, or at least well known. What are they to do, use a neuralizer on the whole world? Prince was more famous than any of them. It was his only career, ever.
As for the williams sisters, what do you expect the wt to do, make some sort of public statment on their official status? Thats ridiculous. The can of worms that opens is massive and the reality is nobody outside the minor cult of jw’s gives one damn what religion they are let alone their official status in that cult.
Get over yourselves.
Its sad that kids in jwdm are discouraged from reaching whatever their full potential may be, but the ugly truth is many are discouraged, in all walks of life, from reaching their full potential. That why the greats are great. They focus and sacrifice to be great. It sucks and its ugly, but if you didnt sacrifice because you saw an “easier” way, a panda petting paradise, then you never would have been great.