The more decentralized solutions we have, the better. "Truly decentralized" is indeed a big statement. We use it to refer to Hive as well. Perhaps, there aren't any networks that are truly decentralized. Not even Hive, not even Bitcoin, not even others. At least some have this as the goal and come closer to decentralization compared to others.
But also, the steps Koinos has taken from the very beginning do emphasize the intentions and mechanisms in place to make it a "truly decentralized" platform. Even the choice of consensus mechanism as proof-of-burn is evidence of that. That said we will know how decentralized the network is once we have the mainnet up and running. So far things look good.