If you trust the author of tool you are installing and the installer is by the same author, then why wouldn't you trust the installer too?
> It's 100% trivial to have it run rm or shred on all files you have access to while simultaneously printing correct looking install progress messages.
> It's 100% trivial to have it run rm or shred on all files you have access to while simultaneously printing correct looking install progress messages.
The same is true of the tool itself, too.