Yes, there are some issues with the current installer. With an MSI, it should be easier to manage using msiexec, I can create some examples when it is released.
They will also be split differently by version instead of a single installer, so the plugin for 3ds Max 2018, 2019 and 2020 will each have different MSI packages.
The current installer system isn't doing what we need it to, so it needed to be changed.