I think the poster above is arguing that dialogs like "this app needs permissions, deny or allow" are effectively giving root-level system access for all intents and purposes, for almost all users -- exactly because users have no basis on which to make that decision and saying "deny" probably prevents the app from doing what it was the user wanted it to do.

So users almost always click "allow". What's the point of the dialog then?

Really, the dialog should be explicit about what's needed and why it's needed and what click "allow" does (i.e., always allow this action, for this purpose? Or always allow any root-level action from this app? Or something else?)

Only then will users actually be able to make a decision beyond "do I trust Microsoft and do I want to do this thing I just asked Word to do?"