Why does Dropbox ask for your computer password

I've never heard of Project Harmony and don't use integration with MS Office, so I guess that's why I haven't had a problem.

I see that Dropbox has created a help article about this. Still, the approach doesn't sit well with me. I can understand that certain elevated permissions are required for some features. Dropbox is the kind of tool that needs to be integrated into the OS to provide all of the capabilities that it does. The way it goes about this is what concerns me.

It needs to be clearer about what it needs permissions for. For example, I don't recall seeing any notice that the app would automatically update itself. Every other app I use that has an autoupdate function (including macOS) asks if I want auto updates. There are very good reasons to give the user control over this function (being on a low bandwidth connection, needing to test software changes before using them in production, etc.). Also, if accessibility is only required for MS Office integration, ask if I want to use it rather than installing it and changing accessibility settings. There could be very good reasons why I wouldn't want the integration.

Dropbox also should not give itself the ability to make changes to the system that require elevated privileges without prompting. If I remove a feature like accessibility, Dropbox should not add it back without asking permission. What if a hacker figures out how to hack the Dropbox client into letting malware have the same privileges? This may be a very rare scenario, but how do the ease of use benefits outweigh the security needs? If Dropbox needs access that I took away, it can detect it and prompt me to allow it again, warning me what will break and, if appropriate, letting me keep it off permanently.