They are losing even more money than that... You have to remember that not only is the total author/curation pool going from 75% to 65% but that authors are losing 25% of the pool they have been getting. So, in theory the curators were suppose to be getting 18.75% and authors 56.25% of the total reward pool, and after this change it would be curators receiving 32.50% and authors receiving 32.50% of the total reward pool. This means authors are taking a 23.75% loss here.

Sure, there might be way more upvotes out of the deal, but that's a big maybe and 23.75% of the total reward pool is a lot to make up. Not saying it can't work, but its a big maybe, and now there will be a 25% free downvoting feature which means people will downvote for any stupid reason they can think of downvoting for.