I'm all for lowering HBD interest, Keeping it close in APR to hive feels like a good thing overall, neither are better you can do on or the other or both.. HBD as it is now is the best way to get a return on the HIVE blockchain overall.
As for the second proposal. I assume this doesn't effect the 50/50 split on post and curation rewards?
RE: Decreasing HBD APR and Posting Rewards and Increasing the Importance of Hive Power (HP)