At least one person who thought the update was short also admitted they skip a lot of the text - not reading every word in the sentences they read, and not reading every sentence. But length is judged on amount of content. If you're skipping content, the length does not change.
I'm not sure why anyone who enjoys fictional content would speed read it. I can understand the use of speed reading for non-fiction, but the point of fiction isn't to absorb it as quickly as possible, it's to immerse yourself in it. Speed reading, in my experience, makes any immersion impossible. Even reading sentences faster than feels natural, but reading every word, makes dialogue especially sound artificial.
But even if you can do this and still have it feel natural and feel immersed in the story and the characters, the update length didn't change. You skipped a lot of the content. Your experience of "too little content" is on you, not the dev. If you want the experience to last longer, stop speed reading through it.
