I respectfully disagree @dantheman. @sigmajin's explanation was clear, largely if not entirely accurate, and reasonably complete. He covered the issue of automated voting in an accurate manner, which is to say that changes of this nature can not differentiate between automated voting and non-automated users who invest time and effort into active curation. To shift influence away from one with this parameter change unavoidably means also shifting influence away from the other.
If I were to find fault in his analysis, it would be failing to consider changes in behavior, but I do not find this extended analysis likely to help support the change. Both humans and bots may respond to the change by voting less often using the same total vote power, and instead spending the rest of their time at the beach, or on Facebook (or wherever it is that bots go for time away from Steemit). I fail to see how this voluntarily-reduced engagement would be beneficial in any significant way.
Nevertheless that is indeed a separate issue from the process of how or if these changes get made. The decision to pull it out of the release containing other useful improvements was a good one and I support that.