Is 50:50 not fixed yet? One thing I really don't understand is that steemitblog's posts didn't include the exact ratio twice in a row. Are you also hesitant about this change?

This kind of change should be done at the SMT level. I think the main purpose of this is to keep holders who're trying to leave. Eventually ad-revenue sharing with authors is a must. Currently, Steemit requests holders to pay authors, which has been proven to be not sustainable. That's why many holders are leaving and Steemit is trying to give a myopic incentive to them.

ps. Due to several combined changes, you will not know which result is due to which change.