in using it, i believe that it's a little handholdy and reduces expression when every word has some color based on it's part of speech. intentional application of this would be incredibly fun to read, if not incredibly tedious to write
[0] Which is why UPPERCASE TEXT is a reading speed bump for almost all readers because word shapes blur together into "just rectangles" more. Which is also why the "slow reveal" pattern in most visual novel genres is often very wrong for English text. (Most simply reveal character at a time which makes sense for CJK ideograms because one character is at least a full syllable if not also a full word. When the pattern was copied to English translations it probably should have been done word at a time rather than character at a time.)