https://steemit.com/steem/@themarkymark/curation-reverse-auction-changing-from-15-minutes-to-1-minute-in-hard-fork-21

Hi steemit, is there any reason why this change

• was not announced
• was not discussed
• was implemented after the work on hf21 has "finished"

This is a major change in steem economics, why it was not mentioned in any of the hf21 blog posts and just straight up added to the code?