Perhaps the perfect time to ask: why are release notes like this on the App Store? Are they a required field and this is the default? Does a popular tool use this value?
Don't underestimate the effort a software developer will put forth to create mountains of complicated automation and scripts if it allows them to be lazy. And they see no issue with this. So why would they see an issue being accountable for yet another agile cycle.
Rev number go up!
They're required for every version release and no one reads them anyway.
The real answer is this: https://www.reddit.com/r/iOSProgramming/comments/1efubql/im_...
Not only nobody reads them, but Apple forces you to translate them into languages even less than nobody read. It'd be an improvement if they only required English text.