In regards to the concerns about the governance.
You might think this change may result in users powering down and buying more HBD. Which is true and real.
In this case, the HBD price goes up. When it goes over $1.05, buying HBD is not worth it anymore. So the conversions start to happen. HIVE to HBD. This results in the deflation of the liquid HIVE in circulation.
So as long as this goes on, we burn HIVE day by day, and the liquid HIVE is getting less and less in the circulation. There might not be any governance concerns because most likely the proportion of HP to liquid HIVE won't change that much.
This change with enough marketing power can result in higher prices for HIVE. And since HBD is stable, we won't have any over-printing issues like the old chain.
And this is not a pure financial change. It's mostly a marketing move.