It is as it is, just simply all the folders are under Piriform.
Which is their own fault for not actually reading what the installation program tells them.
You might be mistaken as to what I'm asking for; right now Piriform products omit the "Piriform" directories I'm looking for and install under Program Files/Start Menu as is (so four install folders stuck in Program Files/on Start Menu).
It's very small, just concerning install directory; wouldn't it be better to place products in a "C:\Program Files\Piriform\" directory by default, as well as placing Start Menu shortcuts in subdirectories under a "Piriform" directory?