It's more for the ones at the top but it's less more for them than the hf20 proposal, if that makes sense. Moving from the current system it would take away from authors (particularly people who are exploiting the bug but also some innocents) and distribute that in a stake-weighted fashion among the voters on the post. So it still benefits the biggest voters on each post but it doesn't give value to the site's biggest voters from posts they didn't vote on like the hf20 proposal does.

Anything that increases the percentage of rewards paid to curation is always going to be more for the top in some fashion unless the core algorithm is changed.