In some cases this makes sense, but it makes no sense in this case because the current patch notes have no "big changes" in them.
Patchnotes
Fixed crash with very large foliage draw distances
Reduced stuttering with slow hard drives
Improved day-night transition (PC/MAC only)
Reduced specular lighting flickering
Vehicles and sound improvements (graphics and quality)
Fixed rare issues with bale collisions on consoles
Performance improvements
Fixed helpers folding cotton harvester with a bale loaded
Almost all of the above are single issue bug fixes. We already know Giants isn't going fix the majority of the modeling issues, so how hard is it to put in all the line items for bug fixes? If there are over 15 additional items that are fixed, I'd be surprised.
Why is this a common theme with Giants being unable to fully document their patches? Every patch note post is a partial list with it being left up to the player base to figure out what else was fixed. It is very annoying and not that much effort to put in full notes unless the dev team doesn't actually know what is in the patch, which is whole different set of problems.