It's true that most of the core development is currently centralized in the BlockTrades team. To attack this problem, one of my main near-term development goals for Hive is to move more of the development work to 2nd layer apps, where new teams can work independently on their own blockchain-based applications.

Of course, that doesn't mean there still won't be accountability issues surrounding the dev work done at the 2nd layer (to the extent that some of it will likely be DHF-funded). But it should enable more devs to make proposals that users won't need to be concerned about in terms of potentially affecting the security of the base blockchain layer.