Could one easily distribute software that bundles this and have it installed by novice end users? What kind of permission granting seances would they have to go through, if any?
(Source: until 2 years ago I used to work at a company that did that using a proprietary driver - CBFS - and was looking at WinFSP to replace it.)
The README.md which the submission linked says that they do indeed provide signed binaries for every release.
> What kind of permission granting seances would they have to go through, if any?
From personal experience of using this: WinFSP have ready .msi installer. After going through the standard process of installing it, then you need to install the file system implementation you want (for example SSHFS from http://www.secfs.net/winfsp/rel/).
The required permissions amount to the standard installation prompt, at least from my experience on Windows 10.