Another case in point would be steem monsters. Yes your cards "belong" to you but the way they are randomly selected is not verifiable. The same for the combat system, from what I understand.

Nevertheless, this is true to many platforms. Ethereum, that popularized dApps, also has its own share of problems. Chiefly amongst these, is the fact that most apps use Infura as a proxy to the blockchain. Again, outsourcing trust... But of course people are aware of it. Until proper light clients come in this is the only way to have dApps that have some ressemblence of a decent UX... Plasma chains are another option...