@Ima..
True they will require more storage and horsepower to render.
However, the plus points of the patch are
1) All OS3.5/3.9 icons can now use their full colours without having to get pens from the workbench. That in itself is a good thing!
2) Many people like antialiased true colour imagry on their desktop.
IIRC, you got a Pegasos recently, I thought youd approve ;-)