Doesn't this sort of confirm that 'ideas are cheap, execution is everything'? The abstract idea of 'an online virtual currency' is garbage without the brillian

Doesn't this sort of confirm that 'ideas are cheap, execution is everything'? The abstract idea of 'an online virtual currency' is garbage without the brilliant crypto implementation. I admittedly have a very strong bias against people that think they have a brilliant idea and just need 'someone to build it'.