Essentially yes, for all intents and purposes, it's improbable that anyone is in possession of the private keys to redeem the small amount of coin sent to those addresses. It's also highly improbable that anyone will ever generate (accidentally, or otherwise) those private keys at any stage in the future.

Also on more technical note, transactions like this gradually add to the amount of overall memory required to run a full Bitcoin node. Further reading, search "UTXO".