This is only one of two steps. It slightly changes the detection so that the game always "remembers" whether it is Simplified or Traditional Chinese, even when the language is set to English, German or French.
(the Chinese font code is similiar enough between the KYRA games, but with some differences (e. g. LoK has the Ascii glyphs in an extra file, MR has these in the executable; LoK has a lookup table for the two-byte glyphs etc.)
Reorganize all files in sub directories. The file placement isn't as intuitive as it might be for other engines, which is probably the reason why this hasn't been done before.