It is an interesting option, but, AFAIU, it uses Liquid side chain, centralized and federated, additionally, transactions still generate metadata, such as transaction size, fees, and timestamps about the transaction. While this metadata is less sensitive than the transaction details themselves, it can still be used by chain analysis corps and organized crime conglomerates (plenty of resources) to gather information about the transaction, clearly more private than without it,better than nothing but not a silver bullet.