Note that he wasn’t saying that it was identical to a classic database but rather that the applications being built were treating it like one. I’ve seen a number of hypotheticals batted around and it was clear that most of them could have been a database, perhaps with signatures on certain records, because they didn’t need any of the anonymous aspects.
That could be a sign that developers don’t know how to architect blockchain apps but that’s probably the same as saying most people don’t need blockchains. It seems unlikely that there’s sone widespread benefit still to be discovered rather than maybe some niche applications.