Maybe Google doesn't really need to create sales presentations. It's really hard to get good looking stuff out of Docs or Slides.
Importing vectors like .eps is not possible.
Creating a new document to a directory using your business template is impossible.
Copies of documents are created in root directory. Moving requires navigating in a tiny window without search. (Makes template usage even worse.)
There are no small caps.
You can't load custom fonts.
No log axis in Sheets. (There is histogram though so it's better than Excel!)
No backups, no change management, easy to destroy whole google drive by one user dragging wrong. NOBODY SHOULD EVER DRAG ANYTHING.