Not sure what's so difficult about the patcher? It asks you to find the game folder and then updates the game if you do it correctly. It can tell if the version is wrong so it'll spit out an error if you've already patched it or I guess maybe even if you have the wrong version (i.e. original Japanese one I guess?). From what I can tell it does a MD5 checksum.
The Steam version for instance works just fine with the ENG patch.
It is not that it is difficult, the version of the game that is included in the OP section does not work with the patcher. When you attempt to utilize the uncensoring software this is the error I am receiving.
[Error] The data of old version of the file is different(MD5 checksum does not match).
An error occurred during application of patch files.
Reverting files' changes...
Files' changes has been reverted..
I did not purchase the game via Steam, I purchased it on the DLSite and I'm not going to buy it a second time. That's why I requested someone to kindly upload the game again with the most recent uncensor patch already installed.