I don't believe a 50/50 split is the right way to go to increase incentives for long term investment in SP. I agree with others who have said more effort is required to create posts than to comment / curate them, thus the 75/25 is reasonable.
Although I curate far more than I author currently, and I would like my curation rewards to increase, I do not agree with the 50/50 proposal presented here. There are other options within my control I can pursue to increase my curation rewards besides lowering author rewards.