If it is aimed at getting more people to read posts, then I think with the change it needs to have the page count put back like the old day, so people know how many people have read their posts.
I liked that feature and used to look forward to seeing how many people had took the time to see my post, if they read it great, but at least they took the time to take a look at what I had writ.
I hope for that the 50/50 split will help more content creators and I have seen a decrease in posts on my feed and would like to see more.
good luck with it. :D