This encouraged a flight to short, low quality books. This new plan should wash out low quality work as it's no longer profitable to publish pamphlets with great titles and near Markov-chain levels of nonsense.
Historically I think, may be, some of the 19 century books like Charles Dickens The Great Expectation may suffer from the problem you mention. These books used to be published like periodicals like a single chapter would be released each week(like soap). It made sense to lengthen them for financial benefit.
I am not sure, kind of anecdotal, but I think lot of people don't read or finish lot of books.
This is why an awful lot of economics papers use very complex math. It's a way of intimidating critics.
For many of these papers, while the math is usually not exactly wrong, one quick glance at the unrealistic assumptions at the beginning of the paper is enough to invalidate the entire thing.
Since these papers are often used as a pretext to justify economic policy, this is a not unimportant part of how your wages, spending power and wealth is determined.