A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
This post should be renamed because Word 2016 for Mac is equally rubbish.
I would suggest, "Why is Office 2016 for Mac so bad?" but I have no experience with PowerPoint 2016 for Mac. Outlook 2016 for Mac is just about okay, but I don't use it as much as I use Apple Mail, so I can't really comment.