Change to 50/50 is inconsequential as we already pass curation rewards through to our members. The other aspects of the EIP are much more concerning.
https://steempeak.com/hf21/@steembasicincome/sbi-in-an-hf21-world-part-1-50-50-rewards
https://busy.org/@steembasicincome/sbi-in-an-hf21-world-part-2-convergent-linear-and-downvote-pools