Yes. Nice!! Also, assuming that the hive holders already have the btc they want, anyone else looking to empty such a btc pool would likely have already have had to buy hive off the open market to convert to HBD, likely pushing the market cap of hive up already.
The exchange rate should be set low enough to discourage someone using that peg for large orders and draining the pool, when they can get a slightly better usd btc rate somewhere else