Unity Integration adds too many folders

I’m working with fmod for a while now and liked it very much. There is one thing that’s bothering me though. When I import the Unity Integration into my project a lot of folders appear in project hierarchy: Editor Default Ressources, Gizmos, Plugins or Streaming Assets…
Some of my collaborators found this pretty confusing and complained about the amount of folders created.
I’m now interested to know why they are organized exactly like that and if there is a possible way to have these just in one folder?

There is a great write up on the topic on the Unity Forums: https://forum.unity.com/threads/where-to-install-your-assets-for-scripting-packages-editor-extensions.292674/

A lot of it comes down to Unitys Special Folder Names.