Thank you for the feedback. I have forwarded your request to the engineering team. They will reach out to you if any more information is needed.Ivy commented
Hello. I have used Acrobat since the very first version decades ago. You are making a common assumption that many before you have made. Acrobat was never intended to be a page layout program. By design it was created only to be a sort of delivery envelope so that others could view the document without having the software used to create the source files.
If changes such as margins or etc. need to happen to a document, those changes should happen in the source software such as MS Word, Adobe InDesign, Ventura, . . . There are good reasons for this.