Why create such a complex cipher?

[dashstofsk]

But I still tend to believe that the language is rather inflected.

I had very much the same idea when I first started my own investigations. But after I had generated, tabulated, analysed and correlated many statistics about word suffices I eventually came to the conclusion that there was little evidence to show for an inflected language. I suspect that many other people have tried the same. Latin as a possible language has also been suggested by many people without success.