This. HBD seems to be the project that needs help too. In case you feel it is overexposed, my point is mostly about protecting it from the visionaries who want to have another Luna.
The reason that the LVL:SWAP.ETH pool works so well, is that is forms a triangle between the previously existing Swap.HIVE:LVL pool and the massive SWAP.ETH:SWAP.HIVE pool. This allows robots to arbitrage all trades and not only help keep the price more stable, but also generate fees for liquidity pool providers.
SWAP.HIVE:SWAP.HBD is about the same size as SWAP.HIVE:SWAP.ETH so that's not a good reason to prefer SWAP.ETH over SWAP.HBD.
As for someone coming to any Hive project straight from Ethereum, it seems unrealistic to expect they can deposit a couple ETH to Hive-Engine and just use the direct liquidity pool without having to use the triangles (that have much better liquidity).