Yes, because privacy is not on by default the vast majority of users ~90% do not use Zcash privately. Zcash tech is more private than Monero theoretically, but no one uses it, not even most Zcashers.
And has many other bad design decisions.
Vulnerable known centralized corporation and researchers w/ a CEO (Electric Coin Company)
Originally a trusted setup
Indefinite 20% dev tax on mining (Founders Reward)
Computationally expensive (Slow performance for shielded txs)
Possibly considered a security
Transitioning into Proof of Stake
Not fungible
Not well tested or understood cryptography
Not tested on Darknet Markets (not used in adversarial environments)
Fixed blocksize and supply (high tx fees if demand increases)
IP isn't obfuscated