Cardano main products not even out yet...
So to burst you and many other view on zcash but zooko never prided itself as zcash being private. He always said zcash is willing to open it key to gov for high risk crimes. Zcash also has a company behind it which help it investors out and by being less private it get more exhcnages while being private enough for some dark net.
There a reason why only 10% of all darn net have zcash...